{"id":13015,"date":"2022-02-08T23:47:00","date_gmt":"2022-02-09T07:47:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=13015"},"modified":"2025-05-19T23:58:56","modified_gmt":"2025-05-20T06:58:56","slug":"p0404-code-exhaust-gas-recirculation-circuit-range-performance-problem","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0404-code-exhaust-gas-recirculation-circuit-range-performance-problem\/","title":{"rendered":"P0404 Code: Exhaust Gas Recirculation Circuit Range\/Performance Problem"},"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-column13015_ee8e20-9e > .kt-inside-inner-col,.kadence-column13015_ee8e20-9e > .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-column13015_ee8e20-9e > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column13015_ee8e20-9e > .kt-inside-inner-col{flex-direction:column;}.kadence-column13015_ee8e20-9e > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column13015_ee8e20-9e > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column13015_ee8e20-9e{position:relative;}@media all and (max-width: 1024px){.kadence-column13015_ee8e20-9e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column13015_ee8e20-9e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column13015_ee8e20-9e inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-29aa61  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-bc4858\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading13015_8ccb59-53, .wp-block-kadence-advancedheading.kt-adv-heading13015_8ccb59-53[data-kb-block=\"kb-adv-heading13015_8ccb59-53\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading13015_8ccb59-53 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading13015_8ccb59-53[data-kb-block=\"kb-adv-heading13015_8ccb59-53\"] 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-heading13015_8ccb59-53 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading13015_8ccb59-53[data-kb-block=\"kb-adv-heading13015_8ccb59-53\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading13015_8ccb59-53 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading13015_8ccb59-53\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The P0404 code stands for &ldquo;Exhaust Gas Recirculation Circuit Range\/Performance Problem.&rdquo; It&rsquo;s triggered when the powertrain control module (PCM) detects erratic EGR valve performance.<\/li>\n\n\n\n<li>Some common causes that could trigger the code include a short in the 5V reference circuit and an open ground circuit, among others.<\/li>\n\n\n\n<li>Rough idling is one of the most common symptoms of the P0404 code.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>If you&rsquo;re getting a P0404 code on your scan tool, here&rsquo;s a quick but detailed guide on what it means, what causes it, and how it can be fixed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0404 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic Trouble Code (DTC) P0404 stands for Exhaust Gas Recirculation Circuit Range\/Performance Problem. It is a generic <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD trouble code\">OBD trouble code<\/a> that activates if the powertrain control module (PCM) detects erratic Exhaust Gas Recirculation (EGR) valve performance. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/egr-valve-1024x1024.jpg\" alt=\"a car's egr valve\" class=\"wp-image-13029\" style=\"width:1024px;height:1024px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/egr-valve-1024x1024.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/egr-valve-300x300.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/egr-valve-768x768.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/egr-valve-75x75.jpg 75w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/egr-valve-600x600.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/egr-valve.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Code P0404 activates when the car computer detects erratic EGR valve performance. <\/figcaption><\/figure><\/div>\n\n\n<p>It could mean that your EGR valve isn&rsquo;t doing what it&rsquo;s supposed to do in specified parameters such as being fully open when it should only be partially open. This can be bad as, for example, too much exhaust gas can make it difficult for the engine to idle.<\/p>\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<p>The EGR system redirects exhaust gas back into the engine to lower the temperature in the cylinder and lessen nitrogen oxide (NOx) emissions. This system uses a valve to regulate the flow of exhaust coming back into the engine. <\/p>\n\n\n\n<p>The valve is monitored by the PCM, and sends information on whether it&rsquo;s open, closed, or partially closed.<\/p>\n\n\n\n<p>An in-depth understanding of the EGR system could help you fix the issue if you&rsquo;re planning a DIY approach. You can read our advanced, technical discussion about the <a href=\"https:\/\/www.carparts.com\/blog\/p0401-code-exhaust-gas-recirculation-egr-flow-insufficient-detected\/#An_In-Depth_Look_at_the_EGR_System\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"EGR system\">EGR system<\/a>. Otherwise, continue reading below for the possible causes of P0404.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">P0404 on Some Chrysler Vehicles<\/h3>\n\n\n\n<p>Code P0404 may appear on some <a href=\"https:\/\/www.carparts.com\/chrysler\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Chrysler\">Chrysler<\/a> vehicles. On a <a href=\"https:\/\/www.carparts.com\/vehicle\/2005\/Chrysler\/Town_-and-_Country\/Base\/6_Cyl_3-dot-3L\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"2005 Chrysler Town &amp; Country 3.3L V6\">2005 Chrysler Town &amp; Country 3.3L V6<\/a>, for example, this DTC is set when <em>&ldquo;the EGR flow or valve movement is not what is expected.&rdquo;<\/em><\/p>\n\n\n\n<p>The code may appear in a 2005 Chrysler Town &amp; Country 3.3L V6 because of the following conditions:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Good trip equal to zero<\/li>\n\n\n\n<li>High resistance in 5 volt supply<\/li>\n\n\n\n<li>EGR solenoid control ckt<\/li>\n\n\n\n<li>Intermittent condition<\/li>\n\n\n\n<li>EGR sensor signal circuit open<\/li>\n\n\n\n<li>EGR sensor signal circuit shorted to ground<\/li>\n\n\n\n<li>Sensor ground circuit open<\/li>\n\n\n\n<li>EGR assembly (ground)<\/li>\n\n\n\n<li>Issue with PCM<\/li>\n<\/ul>\n\n\n\n<p>For this specific vehicle, it is recommended to diagnose all other EGR DTC(s) first before continuing with any test related to P0404 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P0404 Code?<\/h2>\n\n\n\n<p>Code P0404 usually indicates that there is a carbon build-up somewhere in the lines, or on other occasions, a bad EGR valve. <\/p>\n\n\n\n<p>There isn&rsquo;t really any way to prevent carbon build-up as it can naturally happen over time, but if you are getting this fault prematurely, here are the possible causes as to why:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A short in the 5V reference circuit<\/li>\n\n\n\n<li>Open ground circuit<\/li>\n\n\n\n<li>PCM-controlled voltage circuit short<\/li>\n\n\n\n<li>Faulty PCM<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/bad-egr-valve-common-symptoms-and-testing-procedure\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty EGR valve\">Faulty EGR valve<\/a><\/li>\n\n\n\n<li>Malfunctioning EGR sensor<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/nitrogen-oxide-emission-1024x683.jpeg\" alt=\"nitrogen oxide emission\" class=\"wp-image-13027\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/nitrogen-oxide-emission-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/nitrogen-oxide-emission-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/nitrogen-oxide-emission-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/nitrogen-oxide-emission-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/07\/nitrogen-oxide-emission.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Increased nitrogen oxide emission may indicate a failing EGR valve.<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0404 Code?<\/h2>\n\n\n\n<p>It&rsquo;s possible to find no observable symptoms of a P0404 code aside from a <a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check engine light\">check engine light<\/a>. However, EGR valves are known to fail due to poor maintenance, which as previously mentioned, results in carbon build-up. This can block the valve and prevent it from opening or closing completely.<\/p>\n\n\n\n<p>If the valve starts to fail, the engine may begin to experience performance issues like:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rough idling<\/li>\n\n\n\n<li>Poor fuel economy<\/li>\n\n\n\n<li>Increased NOx emissions<\/li>\n<\/ul>\n\n\n\n<p>Keep in mind that increased NOx emissions may lead to a failed emissions test. The engine is also at risk of higher combustion temperature, which aside from causing bad mileage, can also cause the engine to overheat.<\/p>\n\n\n\n<p>The symptoms mentioned above can be the result of another underlying issue. Like any other OBD-II trouble code, you&rsquo;ll need to rule out multiple causes before you can actually get to the main problem and determine the proper fix.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0404 Code<\/h2>\n\n\n\n<p>Although P0404 is considered a generic code, the specific diagnosis steps may vary depending on the make and model of the vehicle. <\/p>\n\n\n\n    <div class=\"perspective-widget\">\n        <div class=\"pt-child-wrap\">\n\n            <div class=\"pt-col-item1\">\n                <figure class=\"aligncenter size-large\">\n                        <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/dpr_auto,f_auto,q_auto\/carparts\/blog\/plugins\/amp\/avatar-comments\" class=\"com-thumb\" alt=\"Avatar of CarParts.com Research Team\" width=\"100\" height=\"100\">\n                <\/figure>\n                <p>\n                    <strong>CarParts.com Research Team<\/strong> \n                    <span>User<\/span>\n                <\/p>\n            <\/div>\n\n            <div class=\"pt-col-item2\">\n                <div class=\"protip-desc\">\n                    <div class=\"perspective-help-tip\">   \n                        <p>There&rsquo;s more than one way to look at an issue. &ldquo;Community Perspectives&rdquo; highlight authentic personal viewpoints and real-life experiences by the CarParts.com community, including our readers, experts, and product specialists, among others. This can help you make better informed decisions about your car.<\/p>\n                    <\/div>\n                    <div class=\"perspective-help-caption tooltip\"> \n                        <h2>CarParts.com Community Perspectives<\/h2>\n                        <p>Unfortunately, there isn&rsquo;t a one-size-fits-all fix for code P0404 or any other code, for a P0404 code in a Ford Range PJ 2.5L Diesel. The root cause of the code could be anything from a faulty EGR valve to a circuit problem. You (or your mechanic) will need to do some troubleshooting to determine the necessary repairs.<\/p>\n                        <div class=\"cta-btn\">\n                            <a href=\"https:\/\/www.carparts.com\/blog\/p0404-code-exhaust-gas-recirculation-circuit-range-performance-problem\/#commentform\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Jump to Discussions\">Jump to Discussions<\/a>\n                        <\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n\n        <\/div>\n    <\/div>\n\n\n\n<p>To give you an idea about the P0404 code and how to diagnose it, check out these videos:<\/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=\"Chrysler EGR Scope Diagnostics, P0404\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/YJ4c1Pvks-c?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<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=\"SATURN\/GM\/CHEVY  P0404 EGR CODE\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/AKYXmPB4xh8?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 P0404 Code<\/h2>\n\n\n\n<p>Troubleshooting a P0404 code isn&rsquo;t going to be an easy task. But if you&rsquo;re up for the challenge, then feel free to grab your toolbox and try these common repairs:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fix EGR Valve<\/h3>\n\n\n\n<p>In most cases, vehicles will throw a P0404 code because of a stuck valve. After locating your vehicle&rsquo;s EGR valve, use a scan tool to control it. If it doesn&rsquo;t completely open or close all the way, then it&rsquo;s likely stuck or blocked by carbon build-up. You&rsquo;ll have to clean your EGR valve or replace it with a new one.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Replace Any Damaged Parts<\/h3>\n\n\n\n<p>If your EGR valve isn&rsquo;t the problem, then you might need to inspect other parts of the engine management system. Check your ground circuit for any shorted wiring or broken connectors. If your wires all look good, you can also try replacing your EGR sensor or updating the PCM.<\/p>\n\n\n\n<p>Keep in mind that these common repairs won&rsquo;t work for every vehicle. What gets rid of a P0404 code on a <a href=\"https:\/\/www.carparts.com\/chrysler\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Chrysler\">Chrysler<\/a> might not work on a P0404 on a <a href=\"https:\/\/www.carparts.com\/honda\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Honda\">Honda<\/a>. If none of these fixes work for you, then it&rsquo;s time to book an appointment with a trusted mechanic.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get a New EGR Valve for Your Vehicle<\/h2>\n\n\n\n<p>The symptoms listed above often lead to hefty repair bills at the auto shop if you leave them unresolved. If a faulty <a href=\"https:\/\/www.carparts.com\/egr-valve\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"EGR valve\">EGR valve<\/a> is the culprit, it&rsquo;s best to avoid driving until you&rsquo;ve replaced it. Luckily, <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a> has high-quality pieces you can choose from.<\/p>\n\n\n\n<p>One thing we guarantee is fit and quality. With our website&rsquo;s vehicle selector, you can view the valves that fit your ride. And to ensure you get a part that performs like your stock part, our industry professionals handpicked our products from top aftermarket brands.<\/p>\n\n\n\n<p>If you have any questions, don&rsquo;t hesitate to contact our round-the-clock customer service team. Get your new EGR valve in as fast as two business days after ordering it. Take advantage of our unbeatable deals on replacement parts. Get the best value for your money when you shop at CarParts.com.<\/p>\n\n\n\n<p>Check out our selection today.<\/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\/egr-valve\" target=\"_blank\" aria-label=\"EGR Valve\" 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\/repf509202_1\">\n<strong>EGR Valve<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/egr-pressure-feedback-sensor\" target=\"_blank\" aria-label=\"egr pressure feedback sensor\" 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\/repf544501_1\">\n<strong>EGR Pressure Feedback Sensor<\/strong>\n<\/a>\n\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>If you&rsquo;re getting a P0404 code on your scan tool, here&rsquo;s a quick but detailed guide on what it means,&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0404-code-exhaust-gas-recirculation-circuit-range-performance-problem\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":13028,"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":[1738,1232,1237],"ppma_author":[2607,2985],"class_list":{"0":"post-13015","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-egr-position-sensor","9":"tag-egr-valve-2","10":"tag-exhaust-system-2","11":"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>P0404 Code: Exhaust Gas Recirculation Circuit Range\/Performance Problem - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"An EGR malfunction caused by a faulty circuit may activate code P0404. Learn how to properly diagnose this issue and bring your car back in shape.\" \/>\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\/p0404-code-exhaust-gas-recirculation-circuit-range-performance-problem\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0404 Code: Exhaust Gas Recirculation Circuit Range\/Performance Problem - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"An EGR malfunction caused by a faulty circuit may activate code P0404. 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