{"id":67864,"date":"2022-04-03T19:58:07","date_gmt":"2022-04-04T02:58:07","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=67864"},"modified":"2024-08-16T06:15:52","modified_gmt":"2024-08-16T13:15:52","slug":"p050d-code-cold-start-rough-idle","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p050d-code-cold-start-rough-idle\/","title":{"rendered":"P050D Code: Cold Start Rough Idle"},"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-column67864_efffbc-69 > .kt-inside-inner-col,.kadence-column67864_efffbc-69 > .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-column67864_efffbc-69 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column67864_efffbc-69 > .kt-inside-inner-col{flex-direction:column;}.kadence-column67864_efffbc-69 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column67864_efffbc-69 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column67864_efffbc-69{position:relative;}@media all and (max-width: 1024px){.kadence-column67864_efffbc-69 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column67864_efffbc-69 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column67864_efffbc-69 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-97a513  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-cde419\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading67864_d5cdb2-cd, .wp-block-kadence-advancedheading.kt-adv-heading67864_d5cdb2-cd[data-kb-block=\"kb-adv-heading67864_d5cdb2-cd\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading67864_d5cdb2-cd mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading67864_d5cdb2-cd[data-kb-block=\"kb-adv-heading67864_d5cdb2-cd\"] 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-heading67864_d5cdb2-cd img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading67864_d5cdb2-cd[data-kb-block=\"kb-adv-heading67864_d5cdb2-cd\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading67864_d5cdb2-cd summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading67864_d5cdb2-cd\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The P050D stands for &ldquo;Cold Start Rough Idle.&rdquo;<\/li>\n\n\n\n<li>Some issues that could trigger the code include vacuum\/intake leaks, a malfunctioning fuel injector, and insufficient fuel pressure.<\/li>\n\n\n\n<li>Symptoms to look out for include a rich\/lean exhaust, cold start drivability problems, and other drivability issues.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>On-board diagnostic trouble codes are designed to help you or your mechanic diagnose issues with your vehicle faster. But before fixing the trouble codes retrieved by your scan tool, it&rsquo;s crucial that you first understand what they mean.<\/p>\n\n\n\n<p>Code P050D is a generic trouble code related to a rough engine idle during cold start. Read on to learn more about this error code, and what it can mean for your vehicle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P050D Code Mean?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/male-holding-a-diagnostic-tool-use-for-checking-car-obd-codes-1024x683.jpg\" alt=\"male holding a diagnostic tool use for checking car obd codes\" class=\"wp-image-68021\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/male-holding-a-diagnostic-tool-use-for-checking-car-obd-codes-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/male-holding-a-diagnostic-tool-use-for-checking-car-obd-codes-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/male-holding-a-diagnostic-tool-use-for-checking-car-obd-codes-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/male-holding-a-diagnostic-tool-use-for-checking-car-obd-codes-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/male-holding-a-diagnostic-tool-use-for-checking-car-obd-codes-scaled.jpg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/male-holding-a-diagnostic-tool-use-for-checking-car-obd-codes-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/male-holding-a-diagnostic-tool-use-for-checking-car-obd-codes-150x100.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Code P050D is a generic trouble code related to a rough engine idle during cold start.<\/figcaption><\/figure>\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) P050D stands for &ldquo;Cold Start Rough Idle.&rdquo;<\/p>\n\n\n\n<p>The <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM\">PCM<\/a> monitors your <a href=\"https:\/\/www.carparts.com\/blog\/what-does-car-rpm-stand-for\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"engine&rsquo;s RPM\">engine&rsquo;s RPM<\/a> using signals from the (CKP) <a href=\"https:\/\/www.carparts.com\/crankshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"crankshaft position sensor\">crankshaft position sensor<\/a> and the <a href=\"https:\/\/www.carparts.com\/camshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"camshaft position\">camshaft position<\/a> (CMP). It&rsquo;s crucial to regulate intake airflow during closed throttle conditions. When idling, the PCM regulates air intake using the idle <a href=\"https:\/\/www.carparts.com\/air-control-valve\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"air control (IAC) valve\">air control (IAC) valve<\/a>. Unregulated air intake can cause rough engine idle at cold start and trigger the P050D error code.<\/p>\n\n\n\n<p>It&rsquo;s important to note that if your scan tool also retrieved lean exhaust codes, engine coolant temperature (ECT) codes, or IAC-related codes, then you should fix those issues first before the P050D trouble code. Engine misfire problems should also be resolved first because they can contribute to rough idle conditions during cold starts.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"681\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/checking-car-engine-for-cause-of-misfire-1024x681.jpg\" alt=\"checking car engine for cause of misfire\" class=\"wp-image-68022\" style=\"width:1024px;height:681px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/checking-car-engine-for-cause-of-misfire-1024x681.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/checking-car-engine-for-cause-of-misfire-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/checking-car-engine-for-cause-of-misfire-768x511.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/checking-car-engine-for-cause-of-misfire-1536x1022.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/checking-car-engine-for-cause-of-misfire-scaled.jpg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/checking-car-engine-for-cause-of-misfire-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/checking-car-engine-for-cause-of-misfire-150x100.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Engine misfire problems should also be resolved first because they can contribute to rough idle conditions during cold starts.<\/figcaption><\/figure>\n\n\n\n<p><em><strong>Note:<\/strong> The definition of code P050D 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 P050D Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vacuum or intake leaks<\/li>\n\n\n\n<li>Malfunctioning <a href=\"https:\/\/www.carparts.com\/fuel-injector\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel injectors\">fuel injectors<\/a>, <a href=\"https:\/\/www.carparts.com\/spark-plug\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"spark plugs\">spark plugs<\/a>, <a href=\"https:\/\/www.carparts.com\/spark-plug-boot\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"plug boots\">plug boots<\/a>, or <a href=\"https:\/\/www.carparts.com\/ignition-coil\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"ignition coils\">ignition coils<\/a><\/li>\n\n\n\n<li>Lack of fuel pressure\/volume<\/li>\n\n\n\n<li>Bad ECT sensor<\/li>\n\n\n\n<li>Issues with <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wirings\">wirings<\/a> or connectors<\/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\">What Are the Common Symptoms of the P050D Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rich\/lean exhaust<\/li>\n\n\n\n<li>Cold start drivability problems<\/li>\n\n\n\n<li>Other drivability issues<\/li>\n\n\n\n<li>Hissing or sucking noise from the engine<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P050D Code<\/h2>\n\n\n\n<p>The P050D is a generic code that can be logged across several makes and models. However, this does not mean there&rsquo;s a universal diagnostic procedure that will work for all vehicles. The steps for troubleshooting this code will vary depending on your vehicle&rsquo;s specifications.<\/p>\n\n\n\n<p>Check out this video to get an idea of what the diagnostic process for this code 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=\"GM P050D Rough Idle Fix! P0300 Chevy Silverado Rough idle &amp; misfire fix. P0174 P0175. Cold misfire\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/U_NHHEMPlhA?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 P050D Code<\/h2>\n\n\n\n<p>The symptoms of code P050D can be similar across several vehicles. However, that does not mean that they share repair steps as well. All vehicles are different, so make sure to refer to a factory repair guide that is specific to your car. For instance, repair steps for a P050D code in a Chevrolet Silverado might not work for a P050D code in a Chrysler 300.<\/p>\n\n\n\n<p>If you&rsquo;d like to troubleshoot this code on your own, make sure to consult a vehicle-specific <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 an online repair database\">repair manual or an online repair database<\/a>. If you&rsquo;re not an experienced auto DIYer, we strongly suggest leaving the job to a trusted professional.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Get a Brand-New Fuel Injector Today<\/h2>\n\n\n\n<p>Avoid driving your vehicle until you replace the faulty fuel injector triggering the P050D code. Damaged fuel injectors can cause your engine to misfire and idle rough. In some cases, they might even prevent your car from starting. This unpredictability can make driving your car dangerous. Luckily, you can easily solve this problem by getting a brand-new fuel injector from CarParts.com today.<\/p>\n\n\n\n<p>At CarParts.com, you&rsquo;ll find a wide selection of fuel injectors, sourced from only the most trusted manufacturers in the industry. We&rsquo;re always coming up with the best deals for you, so you can get great parts at competitive prices. However, in case you aren&rsquo;t completely satisfied with your order, you&rsquo;ll be pleased to know that we have a 60-day return policy. We accept returns within 60 days of purchase, so you can shop without worry. If you want to return a part, just reach out to our customer support staff, who are always happy to help.<\/p>\n\n\n\n<p>Replace your damaged fuel injector before it prevents your car from starting. Check out our wide selection of <a href=\"https:\/\/www.carparts.com\/fuel-injector\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel injectors\">fuel injectors<\/a> at CarParts.com and get a replacement today!<\/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>On-board diagnostic trouble codes are designed to help you or your mechanic diagnose issues with your vehicle faster. But before&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p050d-code-cold-start-rough-idle\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":68020,"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":[3261,1464,1623,1185,1169,1171,3260],"ppma_author":[2607,2855],"class_list":{"0":"post-67864","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-air-control-valve","9":"tag-camshaft-position-sensor","10":"tag-crankshaft-position-sensor-2","11":"tag-fuel-injector-2","12":"tag-ignition-coil-2","13":"tag-spark-plug-2","14":"tag-spark-plug-boot","15":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P050D Code: Cold Start Rough Idle - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Did you retrieve a P050D code? Learn what it means, its causes, and the common symptoms associated with it in this article.\" \/>\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\/p050d-code-cold-start-rough-idle\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P050D Code: Cold Start Rough Idle - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Did you retrieve a P050D code? Learn what it means, its causes, and the common symptoms associated with it in this article.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p050d-code-cold-start-rough-idle\/\" \/>\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=\"2022-04-04T02:58:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-08-16T13:15:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/04\/Asian-at-Work-Assess-the-Condition-of-the-Vehicle-after-getting-P050D-code-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1367\" \/>\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\\\/p050d-code-cold-start-rough-idle\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p050d-code-cold-start-rough-idle\\\/\"},\"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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