{"id":72776,"date":"2022-09-09T00:13:35","date_gmt":"2022-09-09T07:13:35","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=72776"},"modified":"2023-08-30T04:46:37","modified_gmt":"2023-08-30T11:46:37","slug":"p2066-code-p2066-fuel-level-sensor-b-performance","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2066-code-p2066-fuel-level-sensor-b-performance\/","title":{"rendered":"P2066 Code: P2066 Fuel Level Sensor \u201cB\u201d Performance"},"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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_3fcec9-60 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_3fcec9-60 > .kt-inside-inner-col,.kadence-column_3fcec9-60 > .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_3fcec9-60 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_3fcec9-60 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_3fcec9-60 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_3fcec9-60 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_3fcec9-60{position:relative;}@media all and (max-width: 1024px){.kadence-column_3fcec9-60 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_3fcec9-60 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_3fcec9-60 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-e5b339  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-02b570\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_5c31d2-2b, .wp-block-kadence-advancedheading.kt-adv-heading_5c31d2-2b[data-kb-block=\"kb-adv-heading_5c31d2-2b\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_5c31d2-2b mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_5c31d2-2b[data-kb-block=\"kb-adv-heading_5c31d2-2b\"] 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_5c31d2-2b img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_5c31d2-2b[data-kb-block=\"kb-adv-heading_5c31d2-2b\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_5c31d2-2b summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_5c31d2-2b\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Diagnostic trouble code (DTC) P2066 stands for &ldquo;Fuel Level Sensor &lsquo;B&rsquo; Performance.&rdquo; This code triggers when the powertrain control module (PCM) gets an incorrect voltage signal from the fuel sensor.<\/li><li>The P2066 code can be caused by a faulty fuel level sensor, bad PCM, or faulty wiring to the PCM.<\/li><li>Common symptoms of the P2066 code include an illuminated check engine light, reduced distance to empty mileage, and inaccurate fuel level depicted by the fuel gauge.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The <a href=\"https:\/\/www.carparts.com\/fuel-level-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel level sensor\">fuel level sensor<\/a> gauges how much gasoline or diesel remains in your vehicle&rsquo;s fuel tank. It sends its readings to the <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control module\">powertrain control module<\/a> (PCM). The module delivers the information to the fuel gauge on the instrument panel and other controllers through the data communication bus.<\/p>\n\n\n\n<p>The PCM will log a P2066 code if it receives a voltage signal from the fuel level sensor that does not match any of the signals programmed into the module.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2066 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) P2066 indicates &ldquo;Fuel Level Sensor &lsquo;B&rsquo; Performance.&rdquo;<\/p>\n\n\n\n<p>Most fuel level sensors are fitted on the top of either the <a href=\"https:\/\/www.carparts.com\/fuel-tank\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel tank\">fuel tank<\/a> or the <a href=\"https:\/\/www.carparts.com\/fuel-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump\">fuel pump<\/a>. Depending on your vehicle&rsquo;s make and model, the sensor can be found in a different location.<\/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\/09\/replacement-fuel-level-sensor-for-car-1024x602.jpg\" alt=\"replacement fuel level sensor\" class=\"wp-image-72777\" width=\"1024\" height=\"602\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/replacement-fuel-level-sensor-for-car-1024x602.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/replacement-fuel-level-sensor-for-car-300x176.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/replacement-fuel-level-sensor-for-car-768x452.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/replacement-fuel-level-sensor-for-car-1536x904.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/replacement-fuel-level-sensor-for-car-150x88.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/replacement-fuel-level-sensor-for-car.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The fuel level sensor gauges how much gasoline or diesel remains in your vehicle&rsquo;s fuel tank.<\/figcaption><\/figure>\n\n\n\n<p>When the fuel level changes, the electrical resistance of the fuel level sensor changes as well. The sensor converts its resistance into a voltage signal and sends it to the PCM.<\/p>\n\n\n\n<p>The PCM checks the fuel level sensor&rsquo;s voltage signal during the start-up sequence. It also monitors the sensor&rsquo;s signal circuit. If the module gets a response that doesn&rsquo;t match any of the correct operating voltages stored in its memory, it will set the generic engine\/powertrain code P2066.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P2066 can differ depending on the vehicle manufacturer. Check 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 Common Causes of the P2066 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Faulty fuel level sensor<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Bad PCM\">Bad PCM<\/a><\/li><li>Fuel level sensor or PCM wiring problem<\/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 P2066 Code?<\/h2>\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 turns on\">Check engine light turns on<\/a><\/li><li>Reduced distance to empty mileage<\/li><li>Inaccurate fuel level depicted by a fuel gauge<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2066 Code<\/h2>\n\n\n\n<p>The P2066 code is a generic powertrain code and engine code that various makes and models can log. However, this does not mean that there is a one-size-fits-all solution to determine what&rsquo;s causing the problem.<\/p>\n\n\n\n<p>If you&rsquo;re not confident about conducting diagnostic tests on your vehicle, it&rsquo;s a good idea to bring it to a professional mechanic. Otherwise, you can go ahead and diagnose the issue yourself. Here is a video that can give you an idea of what the process might involve:<\/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=\"Fuel Pump Level Sensor Testing and Replacement\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/0eRXw2M-gEQ?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 P2066 Code<\/h2>\n\n\n\n<p>Attempting to fix a P2066 code can become a challenging task. In most cases, it&rsquo;s best to leave the job to professionals.<\/p>\n\n\n\n<p>But if you have the right tools and know-how to test and replace the fuel level sensor, you can resolve the problem on your own. It will be helpful to rely on a <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manual or refer to an online repair database\">repair manual or refer to an online repair database<\/a>. Make sure it contains repair processes that are specific to your vehicle&rsquo;s year, make, and model.<\/p>\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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The fuel level sensor gauges how much gasoline or diesel remains in your vehicle&rsquo;s fuel tank. It sends its readings&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2066-code-p2066-fuel-level-sensor-b-performance\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":72778,"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":[1323,1684,1197,1198],"ppma_author":[2607,2855],"class_list":{"0":"post-72776","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-engine-control-module-2","9":"tag-fuel-level-sensor","10":"tag-fuel-pump-2","11":"tag-fuel-tank-2","12":"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>P2066 Code: P2066 Fuel Level Sensor \u201cB\u201d Performance - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Got a P2066 code? 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Learn what it means, its possible causes and symptoms, as well as what you can do about it in this article.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p2066-code-p2066-fuel-level-sensor-b-performance\/\" \/>\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=\"2022-09-09T07:13:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-30T11:46:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-looking-for-fuel-level-sensor-near-fuel-tank.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1333\" \/>\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=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2066-code-p2066-fuel-level-sensor-b-performance\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2066-code-p2066-fuel-level-sensor-b-performance\\\/\"},\"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. 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