{"id":72771,"date":"2022-09-12T01:06:04","date_gmt":"2022-09-12T08:06:04","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=72771"},"modified":"2023-08-17T19:38:02","modified_gmt":"2023-08-18T02:38:02","slug":"p2635-code-fuel-pump-a-flow-performance","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2635-code-fuel-pump-a-flow-performance\/","title":{"rendered":"P2635 Code: Fuel Pump \u201cA\u201d Flow 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_9316fc-f9 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_9316fc-f9 > .kt-inside-inner-col,.kadence-column_9316fc-f9 > .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_9316fc-f9 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_9316fc-f9 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_9316fc-f9 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_9316fc-f9 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_9316fc-f9{position:relative;}@media all and (max-width: 1024px){.kadence-column_9316fc-f9 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_9316fc-f9 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_9316fc-f9 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-e0a05d  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-d29c2b\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_50d2a3-23, .wp-block-kadence-advancedheading.kt-adv-heading_50d2a3-23[data-kb-block=\"kb-adv-heading_50d2a3-23\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_50d2a3-23 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_50d2a3-23[data-kb-block=\"kb-adv-heading_50d2a3-23\"] 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_50d2a3-23 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_50d2a3-23[data-kb-block=\"kb-adv-heading_50d2a3-23\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_50d2a3-23 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_50d2a3-23\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>DTC P2635 stands for &ldquo;Fuel Pump &ldquo;A&rdquo; Flow Performance.&rdquo; It&rsquo;s logged when the fuel pump control module detects that the fuel pump isn&rsquo;t meeting the correct fuel pressure.<\/li><li>Fuel pump failure, fuel pump control module failure, and wiring problems are some of the issues that could trigger this trouble code.<\/li><li>The most common symptoms of P2635 include a lit check engine light, poor engine performance, and trouble starting the car or accelerating.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>If the <a href=\"https:\/\/www.carparts.com\/fuel-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump\">fuel pump<\/a> develops symptoms, then your vehicle will likely experience engine-related symptoms. Connect a scan tool to your vehicle to check if your vehicle has triggered the P2635 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2635 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code (DTC) P2635 code stands for Fuel Pump &ldquo;A&rdquo; Flow Performance. Vehicles are equipped with fuel pumps, which are responsible for sending fuel to your engine at the appropriate pressure. The fuel pump control module determines the appropriate pressure to run the engine efficiently, which can vary depending on driver inputs and driving conditions.<\/p>\n\n\n\n<p>If the fuel pump control module detects that the fuel pump isn&rsquo;t meeting the correct fuel pressure, then the P2635 code will be stored.<\/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\/image-of-a-car-fuel-pump-1024x639.jpg\" alt=\"car fuel pump\" class=\"wp-image-73412\" width=\"1024\" height=\"639\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/image-of-a-car-fuel-pump-1024x639.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/image-of-a-car-fuel-pump-300x187.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/image-of-a-car-fuel-pump-768x479.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/image-of-a-car-fuel-pump-150x94.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/image-of-a-car-fuel-pump.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The code P2635 will be stored if the fuel pump control module detects that the fuel pump isn&rsquo;t meeting the correct fuel pressure.<\/figcaption><\/figure>\n\n\n\n<p><em><strong>Note: <\/strong>The definition of the P2635 code can 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 Common Causes of the P2635 Code?<\/h2>\n\n\n\n<p>The P2635 code can be caused by the following problems:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/common-fuel-pump-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Fuel pump failure\">Fuel pump failure<\/a><\/li><li>Fuel pump control module failure<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Wiring\">Wiring<\/a> problems<\/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 P2635 Code?<\/h2>\n\n\n\n<p>Your vehicle might show the following symptoms if the P2635 code has been stored:<\/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>Reduced engine performance<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/my-car-wont-start-what-should-i-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"The engine refuses to start\">The engine refuses to start<\/a><\/li><li>Hesitation while accelerating<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2635 Code<\/h2>\n\n\n\n<p>The P2635 code is a generic powertrain code that can be logged in vehicles with an OBD-II system. While this code can be triggered in most vehicles, keep in mind that the steps for diagnosis and repair can vary from vehicle to vehicle, as they have different specifications and designs.<\/p>\n\n\n\n<p>If you&rsquo;re not familiar with the process of diagnosing <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"trouble codes\">trouble codes<\/a>, it might be best to leave the job to a professional mechanic. However, if you&rsquo;re confident in your DIY skills then you can do it yourself.<\/p>\n\n\n\n<p>This video can show you how the diagnosis may go:<\/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=\"Engine Stalling, P2635 P018B codes.| Tahoe, Yukon, Suburban, Sierra, Silverado\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/ePXIkfRSQAo?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 P2635 Code<\/h2>\n\n\n\n<p>Attempting to fix a P2635 code can be tricky without the right tools and technical knowledge. There&rsquo;s also no fix-all solution to any diagnostic trouble code. Under these circumstances, it might be best to bring your vehicle to the nearest repair shop and have a professional mechanic do the job for you. This will ensure that all steps and protocols are followed correctly.<\/p>\n\n\n\n<p>But if you&rsquo;re confident in your DIY skills, then make sure you&rsquo;re equipped with the right guides before proceeding. Manuals like those from Chilton or an ALLDATA subscription contain <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"vehicle-specific repair information\">vehicle-specific repair information<\/a>, so you might want to check those out before working on your daily driver.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Getting a New Fuel Pump for Your Vehicle&nbsp;<\/h2>\n\n\n\n<p>Your vehicle&rsquo;s engine performance will suffer if it doesn&rsquo;t receive the right amount of fuel because of a bad fuel pump. Good thing you don&rsquo;t need to bear with a faulty fuel pump any longer because with just a few clicks, you can get the right fuel pump here at CarParts.com.<\/p>\n\n\n\n<p>Finding the appropriate part is quick, simple, and convenient at CarParts.com. You can use our vehicle selector to filter the search results for fuel pumps that are compatible with your car. Whether you have a truck, sedan, or SUV, there&rsquo;s a good chance we&rsquo;ll have the exact part that you need. We also have strategically located warehouses across the country, allowing us to deliver your fuel pump in as little as two business days.<\/p>\n\n\n\n<p>To help you spend less on repairs, we provide a price-match guarantee for all of our goods.&nbsp; Order a new <a href=\"https:\/\/www.carparts.com\/blog\/common-fuel-pump-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel pump\">fuel pump<\/a> from CarParts.com today and enjoy our affordable deals!<\/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>If the fuel pump develops symptoms, then your vehicle will likely experience engine-related symptoms. Connect a scan tool to your&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2635-code-fuel-pump-a-flow-performance\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":73411,"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":[1197],"ppma_author":[2607,2855],"class_list":{"0":"post-72771","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-fuel-pump-2","9":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P2635 Code: Fuel Pump \u201cA\u201d Flow Performance - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Wondering what the P2635 code means? Read this article to know its definition and common causes and symptoms.\" \/>\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\/p2635-code-fuel-pump-a-flow-performance\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2635 Code: Fuel Pump \u201cA\u201d Flow Performance - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Wondering what the P2635 code means? Read this article to know its definition and common causes and symptoms.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p2635-code-fuel-pump-a-flow-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=\"2022-09-12T08:06:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-18T02:38:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-pump-of-a-vehicle.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\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=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2635-code-fuel-pump-a-flow-performance\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2635-code-fuel-pump-a-flow-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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