{"id":17939,"date":"2022-02-09T00:05:00","date_gmt":"2022-02-09T08:05:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=17939"},"modified":"2024-06-27T08:56:06","modified_gmt":"2024-06-27T15:56:06","slug":"p00bc-code-mass-air-flow-maf-a-circuit-range-performance-air-flow-too-low","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p00bc-code-mass-air-flow-maf-a-circuit-range-performance-air-flow-too-low\/","title":{"rendered":"P00BC Code: Mass Air Flow (MAF) \u201cA\u201d Circuit Range \/ Performance &#8211; Air Flow Too 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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_31ca7f-10 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_31ca7f-10 > .kt-inside-inner-col,.kadence-column_31ca7f-10 > .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_31ca7f-10 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_31ca7f-10 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_31ca7f-10 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_31ca7f-10 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_31ca7f-10{position:relative;}@media all and (max-width: 1024px){.kadence-column_31ca7f-10 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_31ca7f-10 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_31ca7f-10 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-42fcb3  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-9bcef2\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_7795cd-43, .wp-block-kadence-advancedheading.kt-adv-heading_7795cd-43[data-kb-block=\"kb-adv-heading_7795cd-43\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_7795cd-43 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_7795cd-43[data-kb-block=\"kb-adv-heading_7795cd-43\"] 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_7795cd-43 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_7795cd-43[data-kb-block=\"kb-adv-heading_7795cd-43\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_7795cd-43 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_7795cd-43\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Diagnostic trouble code (DTC) P00BC stands for &ldquo;Mass or Volume Air Flow &lsquo;A&rsquo; Circuit Range\/ Performance&ndash;Air Flow Too Low.&rdquo; This code is set when the powertrain control module (PCM) detects a potential issue with the mass air flow (MAF) sensor or its circuit.<\/li><li>The causes of the P00BC code include an air intake leak after the MAF sensor, MAF sensor issues, wiring issues, or a PCM failure.<\/li><li>Common symptoms of the P00BC code include an illuminated check engine light, increased fuel consumption, decreased engine performance, rough running, stalling, and hard starting.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Trying to understand trouble codes may seem intimidating at first. The combination of letters and numbers may confuse anyone without prior knowledge about these codes.<\/p>\n\n\n\n<p>If you&rsquo;re struggling to understand the meaning of the trouble code P00BC or if you want to know more about its symptoms and causes, this guide is for you.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P00BC 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) P00BC stands for &ldquo;Mass or Volume Air Flow &ldquo;A&rdquo; Circuit Range\/ Performance &ndash; Air Flow Too Low.&rdquo; This code sets when the powertrain control module (PCM) detects a potential issue with the mass air flow (MAF) sensor or its circuit. It may also register if the PCM determines that the actual frequency signal coming from the MAF sensor does not correlate with or is lower than the expected range.<\/p>\n\n\n\n<p>The &ldquo;A&rdquo; in this code&rsquo;s definition refers to a part of the MAF sensor or its circuit. In some cases, it may refer to a single sensor if the vehicle has multiple MAF sensors.<\/p>\n\n\n\n<p>The <a href=\"https:\/\/www.carparts.com\/mass-air-flow-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"MAF sensor\">MAF sensor<\/a> measures the volume and density of air entering the engine. You can find it mounted on the engine&rsquo;s air intake tract, downstream from the air filter. This sensor is also called the air flow sensor.&nbsp;<\/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\/2020\/10\/mass-air-flow-sensor-1-1024x1024.jpeg\" alt=\"mass air flow sensor\" class=\"wp-image-17960\" width=\"1024\" height=\"1024\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/mass-air-flow-sensor-1-1024x1024.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/mass-air-flow-sensor-1-300x300.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/mass-air-flow-sensor-1-768x768.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/mass-air-flow-sensor-1-75x75.jpeg 75w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/mass-air-flow-sensor-1-600x600.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/mass-air-flow-sensor-1-928x928.jpeg 928w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/mass-air-flow-sensor-1-150x150.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/10\/mass-air-flow-sensor-1.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>When your PCM detects a potential issue with the MAF sensor or its circuit, it may trigger code P00BC.<\/figcaption><\/figure>\n\n\n\n<p>The PCM uses the data from this sensor, as well as from other sensors, to determine how much fuel the engine needs to run properly. Some MAF sensors may also integrate an air temperature sensor that the PCM also uses to maximize engine performance.<\/p>\n\n\n\n<p>The P00BF code (Mass or Volume Air Flow &ldquo;B&rdquo; Circuit Range\/ Performance- Air Flow Too High) is related to the trouble code P00BC.<\/p>\n\n\n\n<p>If you want to fix P00BC yourself, an in-depth knowledge 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\">mass air flow<\/a> can help you come up with a proper solution.<\/p>\n\n\n\n<p><strong><em>Note<\/em><\/strong><em>: The definition of code P00BC may be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P00BC Code?<\/h2>\n\n\n\n<p>Diagnostic trouble codes, like the P00BC code, indicate the nature and the location of the potential issue in the vehicle. As such, they cannot point to a specific root cause of the problem. Many DTCs have several possible causes, and the P00BC code is no different. Below is a list of the likely reasons why P00BC sets:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Air intake leak <strong>after<\/strong> the MAF (between the MAF and the throttle body)<\/li><li>MAF sensor failure<\/li><li>MAF sensor contamination<\/li><li>MAF sensor electrical harness or <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wiring\">wiring<\/a> issues (open, shorted, frayed, poor connection, etc.)<\/li><li><a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM\">PCM<\/a> failure<\/li><\/ul>\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<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P00BC Code?<\/h2>\n\n\n\n<p>When a DTC sets, the vehicle&rsquo;s computer system sends a signal to illuminate the check engine light. For some codes, an active check engine light may be the only indication of a potential issue, although many codes show other signs. Some of the most common symptoms of the P00BC code are listed below:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Malfunction indicator lamp (MIL) or <a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check engine light on\">check engine light on<\/a><\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/15-fuel-economy-hacks-that-can-save-you-money-at-the-pump\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Increased fuel consumption\">Increased fuel consumption<\/a><\/li><li>Decreased engine performance<\/li><li>Engine runs rough<\/li><li>Engine stalls<\/li><li>Hard-starting engine<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P00BC Code?<\/h2>\n\n\n\n<p>While an accurate diagnosis is crucial in fixing a diagnostic trouble code, the process itself is quite tedious. Diagnosing trouble codes involves ruling out several possible causes of a potential issue. In addition, troubleshooting requires obtaining more information about the problem. For example, in the case of P00BC in a 2018 Ford Expedition XL, the user or the mechanic will need to find out if other DTCs are present. They will also need to determine the type of MAF sensor affected before proceeding to the actual troubleshooting procedures.<\/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\/2022\/02\/male-mechanic-performs-under-the-hood-inspection-of-car-1024x681.jpg\" alt=\"male mechanic performs under the hood inspection of car\" class=\"wp-image-66651\" width=\"1024\" height=\"681\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/male-mechanic-performs-under-the-hood-inspection-of-car-1024x681.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/male-mechanic-performs-under-the-hood-inspection-of-car-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/male-mechanic-performs-under-the-hood-inspection-of-car-768x511.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/male-mechanic-performs-under-the-hood-inspection-of-car-1536x1022.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/male-mechanic-performs-under-the-hood-inspection-of-car-scaled.jpg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/male-mechanic-performs-under-the-hood-inspection-of-car-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/male-mechanic-performs-under-the-hood-inspection-of-car-150x100.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption> Diagnosing trouble codes involves ruling out several possible causes of a potential issue.<\/figcaption><\/figure>\n\n\n\n<p>If you plan to diagnose and repair the trouble code P00BC yourself, you&rsquo;ll need the right tools and sources. Vehicle-specific <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manuals and databases\">repair manuals and databases<\/a> are the best references available because they provide detailed repair instructions and helpful illustrations. You can also access other repair materials online, such as how-to videos and blogs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P00BC Code?<\/h2>\n\n\n\n<p>Fixing the P00BC code requires determining the root cause of the problem and finding vehicle-specific repair instructions. After all, vehicles are made differently, depending on the manufacturer. No two vehicles will have the same solution for a single trouble code. Repair instructions for P00BC on a BMW vehicle may not effectively fix the P00BC on a Volvo.<\/p>\n\n\n\n<p>While repair manuals and databases may help seasoned DIYers fix the existing issue, consulting a certified professional is also an option, especially if you lack experience fixing DTCs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other Notes About P00BC<\/h2>\n\n\n\n<p>If you encounter the trouble code P00BC, there may be other codes stored along with it as well. In some cases, misfire codes or <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen (O2) sensor\">oxygen (O2) sensor<\/a> codes may also set.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/web-stories\/what-is-an-intake-manifold-gasket\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Intake manifold gasket\">Intake manifold gasket<\/a> replacement or mass airflow sensor replacement are common solutions to the P00BC code. However, these solutions may not be effective in some cases, so make sure to troubleshoot the issue carefully.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Find a Compatible Mass Air Flow Sensor For Your Car<\/h2>\n\n\n\n<p>It&rsquo;s best to leave your car in your garage until you&rsquo;ve replaced its faulty MAF sensor. Driving with a bad MAF sensor can lead to more engine issues and potentially costly repairs. Luckily, finding the right replacement MAF sensor for your car is easy at CarParts.com.<\/p>\n\n\n\n<p>At CarParts.com, we simplify the search for a new MAF sensor that meets your needs and delivers lasting performance at a competitive price. Just plug your vehicle&rsquo;s details into our website&rsquo;s vehicle selector, and you&rsquo;ll find the products in our extensive catalog that meet your needs. A few taps on your mobile device is all it takes to complete your order. New parts can arrive in as little as two business days if you live in the continental US and place your order before noon ET.<\/p>\n\n\n\n<p>So, what are you waiting for? Order a reliable <a href=\"https:\/\/www.carparts.com\/mass-air-flow-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"MAF sensor\">MAF sensor<\/a> from CarParts.com today and return to the road in no time!<\/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\/oxygen-sensor\" target=\"_blank\" aria-label=\"Oxygen 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\/set-repb960901-2_1\" alt=\"Oxygen Sensor\">\n<strong>Oxygen 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\/a1721000_1\" alt=\"Engine Control Module\">\n<strong>Engine Control Module<\/strong>\n<\/a>\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\" alt=\"Mass Air Flow Sensor\">\n<strong>Mass Air Flow Sensor<\/strong>\n<\/a>\n\n<!-- end of editable content -->\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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Trying to understand trouble codes may seem intimidating at first. The combination of letters and numbers may confuse anyone without&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p00bc-code-mass-air-flow-maf-a-circuit-range-performance-air-flow-too-low\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":17966,"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":[1462],"ppma_author":[2607,2985],"class_list":{"0":"post-17939","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-mass-air-flow-sensor-2","9":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P00BC Code: Mass Air Flow (MAF) \u201cA\u201d Circuit Range \/ Performance - Air Flow Too Low - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Having a hard time figuring out what the P00BC code means? 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