{"id":85761,"date":"2023-06-21T22:16:31","date_gmt":"2023-06-22T05:16:31","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=85761"},"modified":"2025-02-25T17:46:26","modified_gmt":"2025-02-26T01:46:26","slug":"p1518-code-intake-manifold-runner-control-stuck-open","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p1518-code-intake-manifold-runner-control-stuck-open\/","title":{"rendered":"P1518 Code: Intake Manifold Runner Control (Stuck Open)"},"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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column85761_b64b05-fb > .kt-inside-inner-col,.kadence-column85761_b64b05-fb > .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-column85761_b64b05-fb > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column85761_b64b05-fb > .kt-inside-inner-col{flex-direction:column;}.kadence-column85761_b64b05-fb > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column85761_b64b05-fb > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column85761_b64b05-fb{position:relative;}@media all and (max-width: 1024px){.kadence-column85761_b64b05-fb > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column85761_b64b05-fb > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column85761_b64b05-fb inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-2418c6  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-b311a4\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading85761_6c299b-43, .wp-block-kadence-advancedheading.kt-adv-heading85761_6c299b-43[data-kb-block=\"kb-adv-heading85761_6c299b-43\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading85761_6c299b-43 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading85761_6c299b-43[data-kb-block=\"kb-adv-heading85761_6c299b-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-heading85761_6c299b-43 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading85761_6c299b-43[data-kb-block=\"kb-adv-heading85761_6c299b-43\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading85761_6c299b-43 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading85761_6c299b-43\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The P1518 code stands for &ldquo;Intake Manifold Runner Control (Stuck Open).&rdquo; It indicates that the PCM has detected an issue in the IMRC.<\/li>\n\n\n\n<li>Some common triggers for the code include a bad IMRC actuator, an open or shorted actuator, and electrical connection issues.<\/li>\n\n\n\n<li>Symptoms to look out for are an illuminated check engine light and decreased engine performance.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Some modern vehicle&rsquo;s come equipped with <a href=\"https:\/\/www.carparts.com\/intake-manifold-runner-valve\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"intake manifold runner control (IMRC) valves\">intake manifold runner control (IMRC) valves<\/a>. These valves are incorporated in the system to allow <a href=\"https:\/\/www.carparts.com\/intake-manifold\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"intake manifold\">intake manifold<\/a> flaps to open and close. The IMRC improves your vehicle&rsquo;s performance by making it possible for the <a href=\"https:\/\/www.carparts.com\/intake-manifold-runner\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"intake manifold runner\">intake manifold runner<\/a> to change length through the butterfly valves.<\/p>\n\n\n\n<p>P1518 is a trouble code related to a fault in the <a href=\"https:\/\/www.carparts.com\/intake-manifold-runner-control\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"IMRC\">IMRC<\/a>. Did your scan tool read this code? We&rsquo;ve gathered information to help you fix this issue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P1518 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) P1518 stands for &ldquo;Intake Manifold Runner Control (Stuck Open).&rdquo;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"602\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/intake-manifold-runner-control-problem-triggers-p1518-code-1024x602.jpg\" alt=\"intake manifold runner control problem triggers p1518 code\" class=\"wp-image-85762\" style=\"width:1024px;height:602px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/intake-manifold-runner-control-problem-triggers-p1518-code-1024x602.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/intake-manifold-runner-control-problem-triggers-p1518-code-300x176.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/intake-manifold-runner-control-problem-triggers-p1518-code-768x452.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/intake-manifold-runner-control-problem-triggers-p1518-code-1536x904.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/intake-manifold-runner-control-problem-triggers-p1518-code-150x88.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/intake-manifold-runner-control-problem-triggers-p1518-code.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The code is set on Ford, Mercury, and Lincoln vehicles once the powertrain control module (PCM) senses a problem within the IMRC.<\/figcaption><\/figure>\n\n\n\n<p>The code is set on <a href=\"https:\/\/www.carparts.com\/ford\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Ford\">Ford<\/a>, <a href=\"https:\/\/www.carparts.com\/mercury\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Mercury\">Mercury<\/a>, and <a href=\"https:\/\/www.carparts.com\/lincoln\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Lincoln\">Lincoln<\/a> vehicles once 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) senses a problem within the IMRC. Specifically, it is logged when the IMRC valve is closed but the IMRC monitor says it is open.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">More in the IMRC<\/h3>\n\n\n\n<p>The IMRC is an electrically-actuated system. It&rsquo;s equipped with two aluminum intake air passages. One passage is always open while the other one is equipped with a butterfly that opens and closes when necessary. The system also has a motorized actuator with internal switches used to send data to the PCM regarding linkage and plate position.<\/p>\n\n\n\n<p>Once the PCM detects an issue within the system or that the valve is stuck open, it&rsquo;ll log the P1518 code.<\/p>\n\n\n\n<p>For more technical information that can help you understand codes like P1518, read our technical discussion about <a href=\"https:\/\/www.carparts.com\/blog\/p2006-code-intake-manifold-runner-control-stuck-closed-bank-1\/#Intake_Manifold_Runner_Control_IMRC_Configurations\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"IMRC systems\">IMRC systems<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Common Causes of the P1518 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bad IMRC actuator<\/li>\n\n\n\n<li>Open or shorted actuator<\/li>\n\n\n\n<li>Electrical connection issues<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty Powertrain Control Module (PCM)\">Faulty Powertrain Control Module (PCM)<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Common Symptoms of the P1518 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<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>\n\n\n\n<li>Decreased engine performance<\/li>\n<\/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 P1518 Code<\/h2>\n\n\n\n<p>It&rsquo;s not easy to diagnose a P1518 code. You&rsquo;ll need adequate knowledge on the IMRC installed on your specific vehicle. Remember that vehicle engines can be structured differently depending on your ride&rsquo;s automaker.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P1518 Code<\/h2>\n\n\n\n<p>Fixing the P1518 code can be complicated&mdash;especially if you&rsquo;re not well-versed in auto repair. If you&rsquo;re not an experienced DIYer, we recommend taking your ride to an auto repair shop. Let a mechanic who has experience clearing IMRC-related codes fix the issue for you.<\/p>\n\n\n\n<p>If you&rsquo;d really like to deal with the issue yourself, make sure to read up about the trouble code first before doing anything with your ride. Guides like those from Chilton can give you vehicle-specific information to help you repair your ride.<\/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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Some modern vehicle&rsquo;s come equipped with intake manifold runner control (IMRC) valves. These valves are incorporated in the system to&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p1518-code-intake-manifold-runner-control-stuck-open\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":85763,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"_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":[1186,1874,3164,1862],"ppma_author":[2607,2985],"class_list":{"0":"post-85761","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-intake-manifold","9":"tag-intake-manifold-runner","10":"tag-intake-manifold-runner-control","11":"tag-intake-manifold-runner-valve","12":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P1518 Code: Intake Manifold Runner Control (Stuck Open) - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"A P1518 is a trouble code related to your vehicle\u2019s intake manifold runner control. Read this article to learn more.\" \/>\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\/p1518-code-intake-manifold-runner-control-stuck-open\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P1518 Code: Intake Manifold Runner Control (Stuck Open) - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"A P1518 is a trouble code related to your vehicle\u2019s intake manifold runner control. 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