{"id":58569,"date":"2019-11-18T07:11:41","date_gmt":"2019-11-18T15:11:41","guid":{"rendered":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/?p=58569"},"modified":"2026-02-12T08:58:45","modified_gmt":"2026-02-12T16:58:45","slug":"volvo-code-400a-evap-canister-purge-valve","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2019\/11\/volvo-code-400a-evap-canister-purge-valve","title":{"rendered":"Volvo Code 400A EVAP Canister Purge Valve"},"content":{"rendered":"<p><img decoding=\"async\" class=\"alignnone size-full wp-image-58627\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/11\/2007-volvo-evap-valve.png\" alt=\"2007-volvo-evap-valve\" width=\"543\" height=\"494\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/11\/2007-volvo-evap-valve.png 543w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/11\/2007-volvo-evap-valve-300x273.png 300w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/><\/p>\n<p>My vehicle is a Volvo V50 2.4L petrol, 2004-2010 model. I have read the diagnostic and report shows fault:<br \/>\n400A, Canister purge valve, circuit fault, permanent<br \/>\nI am having a hard time locating the canister purge valve in the bonnet\/ under the hood. Should I replace with new part or could it be a hose which is bent or damaged. First issue is locating, i have looked online and cant seem to find a video or layout. Thank you for the service, best regards. James<\/p>\n<hr \/>\n<p><!-- In-Article --><ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-5950293074584657\" data-ad-slot=\"3814845838\"><\/ins> <script><br \/>\n     (adsbygoogle = window.adsbygoogle || []).push({});<br \/>\n<\/script><\/p>\n<hr \/>\n<h2>Volvo Code 400A<\/h2>\n<p>Canister Purge Valve. Faulty Signal<\/p>\n<h3>Code 400A Description<\/h3>\n<p>The <a href=\"https:\/\/www.freeautomechanic.com\/pcm-engine-computer.html\">engine control module(ECM<\/a>) detects a fault in the function of the EVAP valve by analyzing the signal from the manifold absolute pressure (MAP) sensor.<\/p>\n<p>The diagnostic trouble code 400A is stored if the ECM registers that the EVAP valve is stuck.<\/p>\n<h4>Code 400A Possible Causes<\/h4>\n<ul>\n<li>The hose between the intake manifold and evaporative emission system (EVAP) valve is defective, blocked or trapped<\/li>\n<li>The hose between the evaporative emission system (EVAP) valve and canister is defective, blocked or trapped<\/li>\n<li>The EVAP valve has stuck in the open position<\/li>\n<li>The EVAP valve has stuck in the closed position<\/li>\n<\/ul>\n<h5>EVAP Canister Purge Valve Location<\/h5>\n<p>Component #6<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-58628\" src=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/11\/2007-volvo-engine-sensor-location-diagram.png\" alt=\"2007-volvo-engine-sensor-location-diagram\" width=\"609\" height=\"462\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/11\/2007-volvo-engine-sensor-location-diagram.png 609w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2019\/11\/2007-volvo-engine-sensor-location-diagram-300x228.png 300w\" sizes=\"(max-width: 609px) 100vw, 609px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>My vehicle is a Volvo V50 2.4L petrol, 2004-2010 model. I have read the diagnostic and report shows fault: 400A, Canister purge valve, circuit fault, permanent I am having a hard time locating the canister purge valve in the bonnet\/ under the hood. Should I replace with new part or could it be a hose&hellip;&nbsp;<a href=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2019\/11\/volvo-code-400a-evap-canister-purge-valve\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Volvo Code 400A EVAP Canister Purge Valve<\/span><\/a><\/p>\n","protected":false},"author":15495,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1,233],"tags":[24103,24102,24101],"class_list":["post-58569","post","type-post","status-publish","format-standard","hentry","category-auto-repair-questions","category-volvo","tag-code-400a","tag-evap-purge-valve","tag-v50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Volvo Code 400A EVAP Canister Purge Valve - FreeAutoMechanic Advice<\/title>\n<meta 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