{"id":18201,"date":"2021-10-15T01:55:00","date_gmt":"2021-10-15T08:55:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=18201"},"modified":"2024-06-27T08:53:28","modified_gmt":"2024-06-27T15:53:28","slug":"p00af-code-turbocharger-supercharger-boost-control-a-module-performance","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p00af-code-turbocharger-supercharger-boost-control-a-module-performance\/","title":{"rendered":"P00AF Code: Turbocharger \/ Supercharger Boost Control A Module 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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_822316-41 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_822316-41 > .kt-inside-inner-col,.kadence-column_822316-41 > .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_822316-41 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_822316-41 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_822316-41 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_822316-41 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_822316-41{position:relative;}@media all and (max-width: 1024px){.kadence-column_822316-41 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_822316-41 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_822316-41 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-b8898a  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-945e3a\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_695496-63, .wp-block-kadence-advancedheading.kt-adv-heading_695496-63[data-kb-block=\"kb-adv-heading_695496-63\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_695496-63 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_695496-63[data-kb-block=\"kb-adv-heading_695496-63\"] 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_695496-63 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_695496-63[data-kb-block=\"kb-adv-heading_695496-63\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_695496-63 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_695496-63\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The diagnostic trouble code (DTC) P00AF stands for &ldquo;Turbocharger \/ Supercharger Boost Control A Module Performance.&rdquo;<\/li><li>The powertrain control module (PCM) will log the P00AF code if it detects an internal error with the boost control module or a part of the system circuit.<\/li><li>The PCM may also set P00AF in some Volkswagen models and other vehicles if it detects a fault within the boost control system.<\/li><li>Possible causes of the P00AF code include a faulty electronic turbo actuator, wiring issue, and faulty PCM.<\/li><li>A vehicle that sets the P00AF code can show symptoms like an illuminated check engine light, limp mode, and erratic or low power levels.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The P00AF code is one of many trouble codes that may be logged by your car&rsquo;s primary computer. Read on to learn more about it, its potential triggers, common symptoms, and more.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P00AF 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) P00AF stands for &ldquo;Turbocharger\/Supercharger Boost Control A Module Performance.&rdquo; This error code is logged when the powertrain control module (PCM) detects a potential issue with the boost control module.&nbsp;<\/p>\n\n\n\n<p>The &ldquo;A&rdquo; in this error code may refer to a potential issue in a certain portion of the system circuit instead of a specific component or symptom.<\/p>\n\n\n\n<p>This code is often set in newer car vehicles (e.g., Cummins-powered trucks) equipped with variable geometry turbocharger (VGT) systems. In VGT systems, the PCM uses an actuator to control and monitor the turbocharger and the amount of boost it provides.<\/p>\n\n\n\n<p>The actuator is considered a &ldquo;boost control module&rdquo; because it&rsquo;s a smart device that communicates with the PCM over a data network. When the actuator detects an internal error, it reports the problem to the PCM. The PCM then turns on the check engine light and stores code P00AF in its memory.&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\/2021\/10\/pcm-detecting-problem-in-the-car-system-P00AF-1024x940.jpg\" alt=\"pcm detecting problem in the car system P00AF\" class=\"wp-image-44932\" width=\"1024\" height=\"940\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/pcm-detecting-problem-in-the-car-system-P00AF-1024x940.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/pcm-detecting-problem-in-the-car-system-P00AF-300x275.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/pcm-detecting-problem-in-the-car-system-P00AF-768x705.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/pcm-detecting-problem-in-the-car-system-P00AF-1536x1410.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/pcm-detecting-problem-in-the-car-system-P00AF-150x138.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/pcm-detecting-problem-in-the-car-system-P00AF.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>In VGT systems, the PCM uses an actuator to control and monitor the turbocharger and the amount of boost it provides.<\/figcaption><\/figure>\n\n\n\n<p>On some vehicles (e.g., Volkswagen), the PCM may also set P00AF if it detects a fault within the boost control system. The issue could point to anything from a damaged vacuum hose to a faulty turbocharger.<\/p>\n\n\n\n<p>For a technical understanding of VGT systems and to see where its parts are located, you may read our discussion <a href=\"https:\/\/www.carparts.com\/blog\/p00af-code-turbochargersupercharger-boost-control-a-module-performance\/#Variable_Geometry_Turbocharging_VGT\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"here\">here<\/a>. If you want to jump to the possible causes of P00AF, click <a href=\"https:\/\/www.carparts.com\/blog\/p00af-code-turbochargersupercharger-boost-control-a-module-performance\/#What_are_the_Possible_Causes_of_the_P00AF_Code\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"here\">here<\/a>.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P00AF 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\">Variable Geometry Turbocharging (VGT)<\/h2>\n\n\n\n<p>Variable Geometry Turbocharging first appeared in the early 2000s, with the original VGTs controlled directly by the ECM\/PCM. Duramax and Powerstroke engines have almost the same VGT, with a special oil piston that uses engine oil pressure to control the vanes.&nbsp;<\/p>\n\n\n\n<p>When the vanes rotate to restrict exhaust, the turbo spins faster, but acts like a smaller turbo. When the vanes open, the turbo spins slower but acts like a larger capacity turbocharger.&nbsp;<\/p>\n\n\n\n<p>Cummins uses a simpler type of VGT that moves a central shaft to physically make the turbocharger smaller or larger.<\/p>\n\n\n\n<p>Later VGT equipped engines have a dedicated VGT module that controls the geometry of the turbocharger based on its communications with the ECM\/PCM via the CAN bus. These &ldquo;boost control modules&rdquo; are some smart boxes that will only respond to ECM\/PCM commands under certain circumstances. For just one example, if the VGT module on a 6.4L Powerstroke gets too hot, it won&rsquo;t respond to the ECM\/PCM commands until ECM\/PCM takes measures to cool the module down. The 6.4L Ford VGT is pictured here.<\/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\/Variable-Geometry-Turbocharging-by-Richard-McCuistian-1024x770.jpg\" alt=\"Variable Geometry Turbocharging by Richard McCuistian\" class=\"wp-image-44931\" width=\"1024\" height=\"770\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/Variable-Geometry-Turbocharging-by-Richard-McCuistian-1024x770.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/Variable-Geometry-Turbocharging-by-Richard-McCuistian-300x226.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/Variable-Geometry-Turbocharging-by-Richard-McCuistian-768x578.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/Variable-Geometry-Turbocharging-by-Richard-McCuistian-150x113.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/10\/Variable-Geometry-Turbocharging-by-Richard-McCuistian.jpg 1089w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>6.4L Ford VGT showing the Variable Geometry Turbocharger and VGT Module. Image by Richard McCuistian.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P00AF Code?<\/h2>\n\n\n\n<p>P00AF is a generic code, so it can have several triggers. Here are the most common:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Faulty electronic turbo actuator<\/li><li>Wiring issue<\/li><li>Faulty <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM\">PCM<\/a><\/li><li>Damaged <a href=\"https:\/\/www.carparts.com\/vacuum-hose\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"vacuum hoses\">vacuum hoses<\/a><\/li><li>Failed <a href=\"https:\/\/www.carparts.com\/turbocharger\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"turbocharger\">turbocharger<\/a><\/li><li>Bad turbocharger position sensor<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P00AF Code?<\/h2>\n\n\n\n<p>You may notice the following symptoms if you drive a car that has a logged trouble code P00AF:<\/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=\"Illuminated check engine light\">Illuminated check engine light<\/a><\/li><li>Vehicle in <a href=\"https:\/\/www.carparts.com\/blog\/web-stories\/what-is-limp-mode\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"limp mode\">limp mode<\/a><\/li><li>Erratic or low power levels<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/bad-turbo-symptoms-plus-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Lack of boost from the turbocharger\">Lack of boost from the turbocharger<\/a><\/li><li>Poor drivability<\/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\">How to Diagnose the P00AF Code<\/h2>\n\n\n\n<p>To avoid the possibility of engine damage, code P00AF should be resolved immediately. However, it may be difficult to pinpoint the exact cause of the problem because there are many possible triggers associated with this code.<\/p>\n\n\n\n<p>Keep in mind that the diagnostic and repair steps of this code should depend on the specifications of your vehicle. As all cars are built differently, they may require vehicle-specific diagnostic processes.<\/p>\n\n\n\n<p>For instance, P00AF code on a Dodge may be diagnosed differently from a code P00AF on a Volkswagen. As such, always refer to a repair manual before attempting anything. If you&rsquo;re still uncertain of how to proceed after reading the repair manual, it might be best to leave the diagnosis to a professional.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P00AF Code<\/h2>\n\n\n\n<p>Code P00AF may be set in vehicles of varying makes and models. It may share similar causes and symptoms with other DTCs. However, since cars differ depending on the manufacturer, there is no one-size-fits-all solution for this code.<\/p>\n\n\n\n<p>All vehicles are different, so you should always refer to the <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"factory repair information\">factory repair information<\/a> specific to your car before DIY-ing any repairs. However, if you aren&rsquo;t confident in your automotive repair skills, it may be best to bring your vehicle to an auto repair shop for proper diagnosis and repair.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Address the P00AF Code With the Correct Components<\/h2>\n\n\n\n<p>A faulty PCM, vacuum hose, or turbocharger can trigger the P00AF code. After you&rsquo;ve found the culprit, you&rsquo;ll likely need a replacement component to fix your vehicle. Finding some vehicle parts can be difficult when browsing brick-and-mortar stores, as they might not have the parts that you need. Luckily, getting the exact components you need is easy and convenient here at CarParts.com.<\/p>\n\n\n\n<p>CarParts.com has an easy-to-use interface that allows you to find parts that are tailor-made for your vehicle. Simply enter your vehicle&rsquo;s year, make, and model in our vehicle selector. Whether you need a PCM, vacuum hose, or turbocharger, our curated part selection has you covered. You can also rest assured that our parts fit properly and perform reliably, as we only source them from the most reputable brands.<\/p>\n\n\n\n<p>Buying the right <a href=\"https:\/\/www.carparts.com\/vacuum-hose\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"vacuum hose\">vacuum hose<\/a>, <a href=\"https:\/\/www.carparts.com\/turbocharger\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"turbocharger\">turbocharger<\/a>, and <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM\">PCM<\/a> is easy here at CarParts.com. Shop now to enjoy our latest deals!<\/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\/turbocharger\" target=\"_blank\" aria-label=\"Turbocharger\" 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\/repd290102_1\" alt=\"Turbocharger\">\n<strong>Turbocharger<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/vacuum-hose\" target=\"_blank\" aria-label=\"Vacuum Hose\" 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\/gxl0079976182_1\" alt=\"Vacuum Hose\">\n<strong>Vacuum Hose<\/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<!-- 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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The P00AF code is one of many trouble codes that may be logged by your car&rsquo;s primary computer. Read on&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p00af-code-turbocharger-supercharger-boost-control-a-module-performance\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":18215,"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":[929,930],"ppma_author":[2607,2985],"class_list":{"0":"post-18201","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-supercharger-kit","9":"tag-turbocharger","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>P00AF Code: Turbocharger \/ Supercharger Boost Control A Module Performance - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what code P00AF means, its usual triggers and symptoms, and what you can do to address it. Read on for more information.\" \/>\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\/p00af-code-turbocharger-supercharger-boost-control-a-module-performance\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P00AF Code: Turbocharger \/ Supercharger Boost Control A Module Performance - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what code P00AF means, its usual triggers and symptoms, and what you can do to address it. 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