{"id":10669,"date":"2021-10-15T01:58:00","date_gmt":"2021-10-15T08:58:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=10669"},"modified":"2024-07-19T09:19:57","modified_gmt":"2024-07-19T16:19:57","slug":"p0102-code-mass-air-flow-maf-circuit-low","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/","title":{"rendered":"P0102 Code: Mass Air Flow (MAF) Circuit Low"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_76c950-22 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_76c950-22 > .kt-inside-inner-col,.kadence-column_76c950-22 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_76c950-22 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_76c950-22 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_76c950-22 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_76c950-22 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_76c950-22{position:relative;}@media all and (max-width: 1024px){.kadence-column_76c950-22 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_76c950-22 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_76c950-22 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-234923  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-810273\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_dd213c-e4, .wp-block-kadence-advancedheading.kt-adv-heading_dd213c-e4[data-kb-block=\"kb-adv-heading_dd213c-e4\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_dd213c-e4 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_dd213c-e4[data-kb-block=\"kb-adv-heading_dd213c-e4\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_dd213c-e4 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_dd213c-e4[data-kb-block=\"kb-adv-heading_dd213c-e4\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_dd213c-e4 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_dd213c-e4\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The P0102 code stands for &ldquo;Mass Air Flow (MAF) Circuit Low.&rdquo; It&rsquo;s logged when the ECM or PCM detects an issue with the MAF sensor&rsquo;s performance.<\/li><li>Some potential issues that could trigger the code include a dirty or faulty MAF sensor, circuit problems, and PCM troubles.<\/li><li>The symptoms of code P0102 include a lit check engine light, a rough running engine, hard starting, stalling, and low engine power.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Lately, you&rsquo;ve been noticing that your car stalls or runs rougher than before. You eventually decide to use an OBD-II scanner to help you determine whether there&rsquo;s an issue, and it displays the trouble code P0102.<\/p>\n\n\n\n<p>What does this mean and what can you do to fix it? Below, we&rsquo;ve put together a guide to help you recognize the symptoms and possible causes of this error code&mdash;along with tips for proper diagnosis and repair.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0102 Code Mean?<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Diagnostic trouble code\">Diagnostic trouble code<\/a> (DTC) P0102 isn&rsquo;t in every vehicle&rsquo;s code library, but whenever it appears it means &ldquo;Mass Air Flow (MAF) Circuit Low.&rdquo; The code is set when the ECM\/PCM perceives a problem with the mass airflow (MAF) sensor&rsquo;s performance.<\/p>\n\n\n\n<p>The MAF sensor is mounted between the air filter and the throttle body. The MAF generates a signal that the PCM uses as a primary input for determining fuel control, and code P0102 is set when the PCM determines that this signal is below specification for a certain amount of time.<\/p>\n\n\n<style>.kadence-column_8774ef-a9 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_8774ef-a9 > .kt-inside-inner-col,.kadence-column_8774ef-a9 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_8774ef-a9 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_8774ef-a9 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_8774ef-a9 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_8774ef-a9 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_8774ef-a9{position:relative;}@media all and (max-width: 1024px){.kadence-column_8774ef-a9 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_8774ef-a9 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_8774ef-a9 kb-section-dir-vertical kb-section-sm-dir-vertical pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>#kt-layout-id_f58c78-66 > .kt-row-column-wrap{align-content:start;}:where(#kt-layout-id_f58c78-66 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}#kt-layout-id_f58c78-66 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:var( --global-kb-row-default-top, 25px );padding-bottom:var( --global-kb-row-default-bottom, 25px );padding-top:20px;padding-bottom:20px;padding-left:16px;padding-right:32px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}#kt-layout-id_f58c78-66 > .kt-row-layout-overlay{opacity:0.00;}#kt-layout-id_f58c78-66 .kt-row-layout-bottom-sep{height:100px;}#kt-layout-id_f58c78-66 .kt-row-layout-bottom-sep svg{width:100%;}#kt-layout-id_f58c78-66 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}#kt-layout-id_f58c78-66 .kt-row-layout-top-sep{height:100px;}#kt-layout-id_f58c78-66 .kt-row-layout-top-sep svg{width:100%;}#kt-layout-id_f58c78-66 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){#kt-layout-id_f58c78-66 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){#kt-layout-id_f58c78-66 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){#kt-layout-id_f58c78-66 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){#kt-layout-id_f58c78-66 > .kt-row-column-wrap{padding-top:28px;padding-bottom:25px;padding-left:16px;padding-right:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}#kt-layout-id_f58c78-66 .kt-row-layout-bottom-sep{height:px;}#kt-layout-id_f58c78-66 .kt-row-layout-bottom-sep svg{width:%;}}<\/style>\n<div class=\"wp-block-kadence-rowlayout alignnone pro-tip-wrap\"><div id=\"kt-layout-id_f58c78-66\" class=\"kt-row-layout-inner kt-layout-id_f58c78-66\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-gutter-none kt-v-gutter-default kt-row-valign-top kt-row-layout-right-golden kt-tab-layout-right-golden kt-m-colapse-left-to-right kt-mobile-layout-right-golden  kt-custom-first-width-10  kt-custom-second-width-90\"><style>.kadence-column_b01515-64 > .kt-inside-inner-col{display:flex;}.kadence-column_b01515-64 > .kt-inside-inner-col{min-height:45px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_b01515-64 > .kt-inside-inner-col,.kadence-column_b01515-64 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_b01515-64 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column_b01515-64 > .kt-inside-inner-col > *, .kadence-column_b01515-64 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_b01515-64 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_b01515-64 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column_b01515-64 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_b01515-64{position:relative;}@media all and (max-width: 1024px){.kadence-column_b01515-64 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column_b01515-64 > .kt-inside-inner-col > *, .kadence-column_b01515-64 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_b01515-64 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_b01515-64 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column_b01515-64 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column_b01515-64 > .kt-inside-inner-col > *, .kadence-column_b01515-64 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_b01515-64 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_b01515-64 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_b01515-64 kb-section-dir-horizontal kb-section-md-dir-horizontal pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image_a90301-fe.kb-image-is-ratio-size, .kb-image_a90301-fe .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image_a90301-fe.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image_a90301-fe .kb-image-is-ratio-size{align-self:unset;}.kb-image_a90301-fe figure{max-width:45px;}.kb-image_a90301-fe .image-is-svg, .kb-image_a90301-fe .image-is-svg img{width:100%;}.kb-image_a90301-fe .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image_a90301-fe\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column_710296-b3 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_710296-b3 > .kt-inside-inner-col,.kadence-column_710296-b3 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_710296-b3 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_710296-b3 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_710296-b3 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_710296-b3 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_710296-b3{position:relative;}@media all and (max-width: 1024px){.kadence-column_710296-b3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_710296-b3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-2 kadence-column_710296-b3 pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\nThere is a certain window the ECM\/PCM will accept as normal. If the signal coming from the MAF sensor drops below that acceptable window, a code is set. Again, the code is different from one manufacturer to the next, so you may get a different code on your vehicle that means the same thing this code does.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/p0100-code-mass-or-volume-air-flow-a-circuit\/\" target=\"_self\" rel=\"dofollow\" class=\"u175ae71b49e84c4fc6629597568981f7\"><style> .u175ae71b49e84c4fc6629597568981f7 { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .u175ae71b49e84c4fc6629597568981f7:active, .u175ae71b49e84c4fc6629597568981f7:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .u175ae71b49e84c4fc6629597568981f7 { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .u175ae71b49e84c4fc6629597568981f7 .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .u175ae71b49e84c4fc6629597568981f7 .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .u175ae71b49e84c4fc6629597568981f7:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">P0100 Code: Mass or Volume Air Flow &ldquo;A&rdquo; Circuit<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<p>For an advanced understanding of mass air flow, you can read our technical discussion on the development of <a href=\"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/#An_In-Depth_Look_at_Mass_Air_Flow\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"mass air flow as well as different sensor configurations\">mass air flow as well as different sensor configurations<\/a>. Otherwise, if you wish to quickly learn the most likely causes of P0102, continue reading the following section.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P0102 Code?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/ECU-of-a-car-with-multicolored-wires-and-plug-at-foreground-disconnected-1024x682.jpg\" alt=\"ECU of a car with multicolored wires and plug at foreground disconnected\" class=\"wp-image-44934\" width=\"1024\" height=\"682\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/ECU-of-a-car-with-multicolored-wires-and-plug-at-foreground-disconnected-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/ECU-of-a-car-with-multicolored-wires-and-plug-at-foreground-disconnected-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/ECU-of-a-car-with-multicolored-wires-and-plug-at-foreground-disconnected-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/ECU-of-a-car-with-multicolored-wires-and-plug-at-foreground-disconnected-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/ECU-of-a-car-with-multicolored-wires-and-plug-at-foreground-disconnected-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/ECU-of-a-car-with-multicolored-wires-and-plug-at-foreground-disconnected-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/ECU-of-a-car-with-multicolored-wires-and-plug-at-foreground-disconnected.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Circuit problems are one of the possible causes of the P0102 code.<\/figcaption><\/figure>\n\n\n\n<p>Listed below are some of the most common issues that can cause your vehicle&rsquo;s PCM to store the code P0102:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Dirty or contaminated MAF sensor<\/li><li>Faulty MAF sensor<\/li><li>Circuit problems (e.g., damaged wiring and loose connections)<\/li><li>PCM issues (rare)<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0102 Code?<\/h2>\n\n\n\n<p>You may observe one or more of the following signs with engine code P0102:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Check engine light\">Check engine light<\/a><\/li><li>Rough running engine<\/li><li>Hard starting<\/li><li>Stalling<\/li><li>Low engine power<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0102 Code<\/h2>\n\n\n\n<p>Code P0102 isn&rsquo;t always caused by a bad MAF sensor. There are other factors that may come into play with this specific error code.<\/p>\n\n\n\n<p>But don&rsquo;t be alarmed&mdash;there are a lot of resources out there that can help you diagnose and manage this error code. Here are some videos that will help you understand and properly perform a diagnosis:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"MAF sensor trouble code (P0102) caused by a bad ground (GM 3100)\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/bJRLZnjS6ms?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"MAF sensor code P0102 from bad engine computer - (Chevy van)\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/dCyPkbli6zs?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0102 Code<\/h2>\n\n\n\n<p>Since the code P0102 points to a problem with the MAF sensor, you may think that replacement would be the only answer&mdash;but that&rsquo;s not always the case.<\/p>\n\n\n\n<p>There are a variety of possible causes, as outlined above, which means there are different avenues of repair. You&rsquo;ll need to diagnose the code accurately to find out the underlying cause before performing any necessary repairs.<\/p>\n\n\n\n<p>There is no one-size-fits-all answer to a P0102 code, or any other codes, for that matter&mdash;but once you&rsquo;ve properly diagnosed the issue, you should be able to find the right fix with the help of <a href=\"https:\/\/www.carparts.com\/blog\/best-online-resources-to-help-you-learn-how-to-fix-cars\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"reputable online automotive guides\">reputable online automotive guides<\/a>. You can also obtain Haynes and Chilton repair manuals, which would be very helpful if you&rsquo;re serious about automotive DIY.<\/p>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/p00bc-code-mass-air-flow-maf-a-circuit-range-performance-air-flow-too-low\/\" target=\"_self\" rel=\"dofollow\" class=\"ud700d0c193cb413344db742746490157\"><style> .ud700d0c193cb413344db742746490157 { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .ud700d0c193cb413344db742746490157:active, .ud700d0c193cb413344db742746490157:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .ud700d0c193cb413344db742746490157 { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .ud700d0c193cb413344db742746490157 .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .ud700d0c193cb413344db742746490157 .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .ud700d0c193cb413344db742746490157:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">P00BC Code: Mass Air Flow (MAF) &ldquo;A&rdquo; Circuit Range \/ Performance - Air Flow Too Low<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<p>Also, keep in mind that all vehicles are different, so when troubleshooting and fixing diagnostic trouble codes, make sure to consult the factory repair information for your application.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other Notes about P0102<\/h2>\n\n\n\n<p>Is it safe to drive with a P0102 code? While you may technically still be able to drive when a&nbsp; P0102 code is set, you should not do so for long. An issue with the MAF sensor can cause your car to stall or run poorly&mdash;and that can be dangerous.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/MAF-Sensors-Checkup-1024x647.jpg\" alt=\"MAF Sensors Checkup\" class=\"wp-image-44935\" width=\"1024\" height=\"647\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/MAF-Sensors-Checkup-1024x647.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/MAF-Sensors-Checkup-300x189.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/MAF-Sensors-Checkup-768x485.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/MAF-Sensors-Checkup-1536x970.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/MAF-Sensors-Checkup-150x95.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/MAF-Sensors-Checkup.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>An issue with the MAF sensor can cause your car to stall or run poorly.<\/figcaption><\/figure>\n\n\n\n<p>What&rsquo;s more, a faulty MAF sensor can damage other parts of your vehicle, such as the catalytic converter.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">An In-Depth Look at Mass Air Flow<\/h2>\n\n\n\n<p>Carburetors mist more fuel into the engine as the throttle plate is opened and airflow through the venturi increases. The low pressure created draws fuel into the intake stream through the venturi, which atomizes the fuel. With fuel injection, however, the atomizing takes place at the fuel injector nozzle.<\/p>\n\n\n\n<p>Mechanical fuel injection systems such as Bosch&rsquo;s K-Jetronic (80s VWs, Delorean, etc), require no electronics, but airflow raises a plate and a lever, which moves a small piston inside a slotted tube in the center of the fuel distributor, delivering more fuel through those very cheap and simple spray nozzles right at the intake valve.<\/p>\n\n\n\n<p>The point is that, with both carburetors and mechanical fuel injection, airflow is the primary determining factor regarding how much fuel is delivered. <strong>An engine is basically a breathing machine, and the deeper it breathes, the more fuel is delivered.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">From Manifold Absolute Pressure to Electronic Air Flow Measurement<\/h3>\n\n\n\n<p>Electronic fuel injection shoe-horned a computer into the process, and most early systems used the manifold pressure to determine how much fuel the computer would deliver, because manifold pressure is an accurate indicator of engine load. Notice that if you take manifold vacuum and subtract it from ambient air pressure, you get manifold pressure (manifold absolute pressure, or MAP), which is what the engine controller on those vehicles is actually using for its calculations.<\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<p>But some automakers began, in the mid-1980s, to shift away from manifold absolute pressure to an electronic measurement of the airflow. Early on, there was typically an L-shaped vane (VAF used on Bosch L-Jetronic) gently spring-loaded so that as air passed through the meter, the vane would respond to the flow, and the electronic element of the VAF meter would increase the voltage delivered to the engine controller, which responded by increasing injector pulse width as needed.<\/p>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/p010b-code-mass-or-volume-air-flow-b-circuit-range-performance\/\" target=\"_self\" rel=\"dofollow\" class=\"ue95bdb74eab92b6d65a1c155bbfc581a\"><style> .ue95bdb74eab92b6d65a1c155bbfc581a { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .ue95bdb74eab92b6d65a1c155bbfc581a:active, .ue95bdb74eab92b6d65a1c155bbfc581a:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .ue95bdb74eab92b6d65a1c155bbfc581a { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .ue95bdb74eab92b6d65a1c155bbfc581a .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .ue95bdb74eab92b6d65a1c155bbfc581a .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .ue95bdb74eab92b6d65a1c155bbfc581a:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">P010B Code: Mass or Volume Air Flow \"B\" Circuit Range \/ Performance<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<p>Mass air flow sensors don&rsquo;t have any moving parts, but will use the amount of current required to maintain the temperature of a grid or a wire to determine airflow.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">MAF Sensor Configurations<\/h3>\n\n\n\n<p>One common kind of MAF sensor has a cold wire and a hot wire, and the hot wire&rsquo;s temperature will be maintained at 300 degrees Celsius higher than whatever the temperature of the cold wire is. Some Asian sensors operate using a sound generator and a detector so that the air passing through the sensor deflects the sound.<\/p>\n\n\n\n<p>Some MAF sensors include the intake air temperature (IAT) sensor and some just use the cold wire to determine intake air temperature. The MAF sensor usually has four wires unless the IAT is a separate sensor, which will require two more wires. But one of the wires feeding the MAF is typically a B+ feed. The signal the ECM\/PCM receives will either be a voltage or frequency signal, and the ECM\/PCM will interpret that input as a &ldquo;grams per second&rdquo; indication of how much air is entering the manifold.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Delivering Your New MAF Sensor to Your Doorstep<\/h2>\n\n\n\n<p>When the MAF sensor stops working, replace it immediately and avoid driving your car until you&rsquo;ve fixed this issue. The last thing you want is another engine problem with a steep repair cost. Fortunately, CarParts.com quickly ships replacement MAF sensors to your home, speeding up your vehicle&rsquo;s return to the road.<\/p>\n\n\n\n<p>CarParts.com ships world-class accessories and parts like MAF sensors to where you need them. If you live in the continental US and order by noon ET, you can expect your new MAF sensor to arrive at your doorstep in as fast as two business days. Enjoy fast and convenient shopping on our secure online website. Our helpful customer service team is also available 24\/7 to help you pick the right MAF sensor for your vehicle.<\/p>\n\n\n\n<p>At CarParts.com, you can enjoy significant savings on a high-quality mass air flow sensor. Browse our selection of <a href=\"https:\/\/www.carparts.com\/mass-air-flow-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"MAF sensors\">MAF sensors<\/a> and order what you need today.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Products Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\">\n\n<!-- start of editable content -->\n\n<a href=\"https:\/\/www.carparts.com\/mass-air-flow-sensor\" target=\"_blank\" aria-label=\"Mass Air Flow Sensor\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repb316709_1\">\n<strong>Mass Air Flow Sensor<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" aria-label=\"Engine Control Module\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/a1790044v_1\">\n<strong>Engine Control Module<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/iat-sensor\" target=\"_blank\" aria-label=\"iat sensor\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/ra54100001_1\">\n<strong>IAT Sensor<\/strong>\n<\/a>\n\n<!-- end of editable content -->\n\n<\/div>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 6<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Lately, you&rsquo;ve been noticing that your car stalls or runs rougher than before. You eventually decide to use an OBD-II&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":10672,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1314],"tags":[1276,1462],"ppma_author":[2607,2985],"class_list":{"0":"post-10669","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-air-filter-2","9":"tag-mass-air-flow-sensor-2","10":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0102 Code: Mass Air Flow (MAF) Circuit Low - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Trouble code P0102 indicates a Mass Air Flow (MAF) Circuit Low. Read on to find out what it means, its symptoms, and its possible causes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0102 Code: Mass Air Flow (MAF) Circuit Low - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Trouble code P0102 indicates a Mass Air Flow (MAF) Circuit Low. Read on to find out what it means, its symptoms, and its possible causes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-15T08:58:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-07-19T16:19:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/06\/closeup-of-car-maf-sensor.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1509\" \/>\n\t<meta property=\"og:image:height\" content=\"1005\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"Richard McCuistian\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/richardmccuistian\\\/\",\"sameAs\":\"https:\\\/\\\/www.linkedin.com\\\/in\\\/richard-mccuistian-2681891b\\\/, https:\\\/\\\/www.youtube.com\\\/user\\\/McCuistian\"}],\"headline\":\"P0102 Code: Mass Air Flow (MAF) Circuit Low\",\"datePublished\":\"2021-10-15T08:58:00+00:00\",\"dateModified\":\"2024-07-19T16:19:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/\"},\"wordCount\":1519,\"commentCount\":1,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/closeup-of-car-maf-sensor.jpeg\",\"keywords\":[\"air-filter\",\"mass-air-flow-sensor\"],\"articleSection\":[\"OBD-II Trouble Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/\",\"name\":\"P0102 Code: Mass Air Flow (MAF) Circuit Low - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/closeup-of-car-maf-sensor.jpeg\",\"datePublished\":\"2021-10-15T08:58:00+00:00\",\"dateModified\":\"2024-07-19T16:19:57+00:00\",\"description\":\"Trouble code P0102 indicates a Mass Air Flow (MAF) Circuit Low. Read on to find out what it means, its symptoms, and its possible causes.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/closeup-of-car-maf-sensor.jpeg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/closeup-of-car-maf-sensor.jpeg\",\"width\":1509,\"height\":1005,\"caption\":\"closeup of car maf sensor\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0102-code-mass-air-flow-maf-circuit-low\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"P0102 Code: Mass Air Flow (MAF) Circuit Low - In The Garage with CarParts.com","description":"Trouble code P0102 indicates a Mass Air Flow (MAF) Circuit Low. Read on to find out what it means, its symptoms, and its possible causes.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/","og_locale":"en_US","og_type":"article","og_title":"P0102 Code: Mass Air Flow (MAF) Circuit Low - In The Garage with CarParts.com","og_description":"Trouble code P0102 indicates a Mass Air Flow (MAF) Circuit Low. Read on to find out what it means, its symptoms, and its possible causes.","og_url":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2021-10-15T08:58:00+00:00","article_modified_time":"2024-07-19T16:19:57+00:00","og_image":[{"width":1509,"height":1005,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/06\/closeup-of-car-maf-sensor.jpeg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/"},"author":[{"@type":"Person","$id":"4","name":"CarParts.com Research Team","jobTitle":"Expert Automotive Writer","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","sameAs":"https:\/\/www.facebook.com\/carpartscom, https:\/\/twitter.com\/CarPartscom, https:\/\/www.youtube.com\/@CarPartscomOfficial\/, https:\/\/www.instagram.com\/carpartscom\/"},{"@type":"Person","$id":"4","name":"Richard McCuistian","jobTitle":"ASE Master Automobile Technician","description":"Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/","sameAs":"https:\/\/www.linkedin.com\/in\/richard-mccuistian-2681891b\/, https:\/\/www.youtube.com\/user\/McCuistian"}],"headline":"P0102 Code: Mass Air Flow (MAF) Circuit Low","datePublished":"2021-10-15T08:58:00+00:00","dateModified":"2024-07-19T16:19:57+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/"},"wordCount":1519,"commentCount":1,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/06\/closeup-of-car-maf-sensor.jpeg","keywords":["air-filter","mass-air-flow-sensor"],"articleSection":["OBD-II Trouble Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/","url":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/","name":"P0102 Code: Mass Air Flow (MAF) Circuit Low - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/06\/closeup-of-car-maf-sensor.jpeg","datePublished":"2021-10-15T08:58:00+00:00","dateModified":"2024-07-19T16:19:57+00:00","description":"Trouble code P0102 indicates a Mass Air Flow (MAF) Circuit Low. Read on to find out what it means, its symptoms, and its possible causes.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/06\/closeup-of-car-maf-sensor.jpeg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/06\/closeup-of-car-maf-sensor.jpeg","width":1509,"height":1005,"caption":"closeup of car maf sensor"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/06\/closeup-of-car-maf-sensor.jpeg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/06\/closeup-of-car-maf-sensor.jpeg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/p0102-code-mass-air-flow-maf-circuit-low\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":2985,"user_id":1646,"is_guest":0,"slug":"richardmccuistian","display_name":"Richard McCuistian, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/richard-mccuistian.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/richard-mccuistian.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/10669","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=10669"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/10669\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/10672"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=10669"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=10669"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=10669"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=10669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}