{"id":74378,"date":"2022-10-09T21:29:05","date_gmt":"2022-10-10T04:29:05","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=74378"},"modified":"2023-10-16T18:19:21","modified_gmt":"2023-10-17T01:19:21","slug":"p2990-code-injector-control-pressure-too-low","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2990-code-injector-control-pressure-too-low\/","title":{"rendered":"P2990 Code: Injector Control Pressure 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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_404419-27 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_404419-27 > .kt-inside-inner-col,.kadence-column_404419-27 > .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_404419-27 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_404419-27 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_404419-27 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_404419-27 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_404419-27{position:relative;}@media all and (max-width: 1024px){.kadence-column_404419-27 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_404419-27 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_404419-27 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-8bb054  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-fa9f86\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_d95ea1-55, .wp-block-kadence-advancedheading.kt-adv-heading_d95ea1-55[data-kb-block=\"kb-adv-heading_d95ea1-55\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_d95ea1-55 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_d95ea1-55[data-kb-block=\"kb-adv-heading_d95ea1-55\"] 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_d95ea1-55 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_d95ea1-55[data-kb-block=\"kb-adv-heading_d95ea1-55\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_d95ea1-55 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_d95ea1-55\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Code P2990 is logged if the PCM fails to retrieve information from the ICP sensor. The code can also be logged if the oil pressure is too low.<\/li><li>The common causes of a P2990 code include low engine oil level, high-pressure oil pump failure, wiring issue, and ICP sensor failure. A PCM issue can also trigger the code.<\/li><li>The common symptoms of a P2990 code include an illuminated check engine light and a stalling engine. Your engine may also fail to start once this code is logged.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Some diesel engines are built with an injector (HEUI) fuel system that has an injector control pressure (ICP) sensor to monitor oil pressure. Readings from the ICP sensor are used by 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) to operate the fuel injectors and determine the right amount of injection control pressure. If the PCM receives a signal indicating that oil pressure is too low, it will log a P2990 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2990 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) P2990 stands for &ldquo;Injector Control Pressure Too Low.&rdquo;<\/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\/injector-control-pressure-sensor-caused-p2990-1024x542.jpg\" alt=\"injector control pressure sensor caused p2990\" class=\"wp-image-74468\" width=\"1024\" height=\"542\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/injector-control-pressure-sensor-caused-p2990-1024x542.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/injector-control-pressure-sensor-caused-p2990-300x159.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/injector-control-pressure-sensor-caused-p2990-768x407.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/injector-control-pressure-sensor-caused-p2990-1536x813.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/injector-control-pressure-sensor-caused-p2990-150x79.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/injector-control-pressure-sensor-caused-p2990.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The ICP sensor acts as a variable capacitor sensor that&rsquo;s supplied with a five-volt reference signal by the PCM.<\/figcaption><\/figure>\n\n\n\n<p>HEUI fuel systems have an ICP sensor and ICP regulator that form a closed-loop fuel pressure control system. The ICP sensor acts as a variable capacitor sensor that&rsquo;s supplied with a five-volt reference signal by the PCM. In return, the ICP sensor sends a linear analog voltage signal to the PCM that indicates oil pressure in an injection rail.<\/p>\n\n\n\n<p>If the PCM fails to retrieve information from the ICP sensor or notices that the oil pressure is too low, it will set an estimated injection control pressure and log a P2990 trouble code.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P2990 might 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 P2990 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Low engine oil level<\/li><li>High-pressure oil pump failure<\/li><li>Wiring issues<\/li><li>ICP sensor failure<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM issues\">PCM issues<\/a><\/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 P2990 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=\"Illuminated check engine light\">Illuminated check engine light<\/a><\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/my-car-wont-start-what-should-i-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Engine won&rsquo;t start\">Engine won&rsquo;t start<\/a><\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-shuts-off-while-driving-causes-what-to-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Engine stalling\">Engine stalling<\/a><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2990 Code<\/h2>\n\n\n\n<p>DTC P2990 is a generic powertrain code that can be logged in diesel engines with on-board diagnostics (OBD) systems. While this might be the case, vehicle specifications can alter the diagnostic and repair process. If you&rsquo;re not familiar with the process of identifying trouble codes and using certain diagnostic tools, it might be best to leave the job to a professional.<\/p>\n\n\n\n<p>But if you know how to work your way around diagnosing DTCs, then you can go ahead and do it yourself.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P2990 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\/2022\/09\/mechanic-tries-to-address-the-p2990-code-1024x683.jpg\" alt=\"mechanic tries to address the p2990 code\" class=\"wp-image-74478\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-tries-to-address-the-p2990-code-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-tries-to-address-the-p2990-code-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-tries-to-address-the-p2990-code-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-tries-to-address-the-p2990-code-1536x1025.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-tries-to-address-the-p2990-code-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-tries-to-address-the-p2990-code-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-tries-to-address-the-p2990-code-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-tries-to-address-the-p2990-code.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Attempting to fix a P2990 trouble code can be tricky and frustrating especially if it&rsquo;s your first time dealing with one.<\/figcaption><\/figure>\n\n\n\n<p>Attempting to fix a P2990 trouble code can be tricky and frustrating especially if it&rsquo;s your first time dealing with one. Without the right tools and know-how, trying to resolve this trouble code might lead to more repairs down the road if done incorrectly. Under these circumstances, it&rsquo;s best to have your vehicle checked by a certified professional.<\/p>\n\n\n\n<p>If you&rsquo;ve had enough experience dealing with DTCs, then you probably know that there&rsquo;s no magic bullet that can resolve codes for all makes and models. Before working on your vehicle, make sure you&rsquo;re equipped with the right tools and information. Guides like those from Chilton or an ALLDATA subscription contain vehicle-specific repair information, so you might want to check those out before you begin.<\/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>Some diesel engines are built with an injector (HEUI) fuel system that has an injector control pressure (ICP) sensor to&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2990-code-injector-control-pressure-too-low\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":74463,"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],"ppma_author":[2607,2855],"class_list":{"0":"post-74378","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":"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>P2990 Code: Injector Control Pressure Too Low - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what a P2990 code means as well as the most common causes and symptoms associated with this trouble code.\" \/>\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\/p2990-code-injector-control-pressure-too-low\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2990 Code: Injector Control Pressure Too Low - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what a P2990 code means as well as the most common causes and symptoms associated with this trouble code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p2990-code-injector-control-pressure-too-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=\"2022-10-10T04:29:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-17T01:19:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/big-male-mechanic-encounters-p2990.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=\"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\\\/p2990-code-injector-control-pressure-too-low\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2990-code-injector-control-pressure-too-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. 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