{"id":80067,"date":"2025-05-25T11:13:13","date_gmt":"2025-05-25T16:13:13","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=80067"},"modified":"2025-06-04T05:11:04","modified_gmt":"2025-06-04T10:11:04","slug":"p2665-obd2-fuel-shutoff-valve-b-control-circuit-open","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2665-obd2-fuel-shutoff-valve-b-control-circuit-open","title":{"rendered":"P2665 OBD2: Fuel Shutoff Valve &#8220;B&#8221; Control Circuit\/Open"},"content":{"rendered":"<h2>What Does the P2665 Code Mean?<\/h2>\n<p>The P2665 code indicates a problem with the Fuel Shutoff Valve &#8220;B&#8221; control circuit, specifically that it is open when it should not be. This code is triggered when the engine control module (PCM) detects an issue with the Fuel Pressure Relief Valve signal.<\/p>\n<h2>What Causes the P2665 Code?<\/h2>\n<p>Several factors may cause the P2665 code, including:<\/p>\n<ul>\n<li>Fuel shut-off valve failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues in the control circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2665 Code?<\/h2>\n<p>When the P2665 code is present, you may notice the following symptoms:<\/p>\n<ul>\n<li>Decreased engine performance<\/li>\n<li>Engine may stall<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P2665 Code?<\/h2>\n<p>The P2665 code is classified as urgent, indicating that immediate action is necessary. This code points to significant malfunctions that can cause severe damage to the vehicle or pose risks to the driver and passengers.<\/p>\n<h2>How to Diagnose the P2665 Code<\/h2>\n<p>To diagnose the P2665 code, a mechanic will typically follow these steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the P2665 code and check for any additional codes.<\/li>\n<li>Inspect the wiring and connectors associated with the Fuel Shutoff Valve for damage or loose connections.<\/li>\n<li>Test the functionality of the Fuel Shutoff Valve using a multimeter.<\/li>\n<li>Check the PCM for any faults or issues.<\/li>\n<\/ol>\n<h2>Common Repairs for the P2665 Code<\/h2>\n<p>Common repairs that may be recommended for the P2665 code include:<\/p>\n<ul>\n<li>Replacing the faulty Fuel Shutoff Valve<\/li>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Replacing the Powertrain Control Module (PCM) if it is found to be defective<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2665 Code?<\/h2>\n<p>The cost to fix the P2665 code can vary widely based on the specific repairs needed. On average, you might expect to pay between $100 to $500, depending on whether it involves wiring repairs, valve replacement, or PCM replacement.<\/p>\n<h2>Can I Fix the P2665 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may feel comfortable diagnosing and repairing issues related to the P2665 code, it is important to have a good understanding of automotive systems and OBD-II diagnostics. Proper diagnosis is crucial to ensure that you address the underlying problem rather than just the symptoms. If you are unsure, it is always recommended to seek professional assistance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does the P2665 Code Mean? The P2665 code indicates a problem with the Fuel Shutoff Valve &#8220;B&#8221; control circuit, specifically that it is open when it should not be. This code is triggered when the engine control module (PCM) detects an issue with the Fuel Pressure Relief Valve signal. What Causes the P2665 Code? &hellip;<\/p>\n","protected":false},"author":26,"featured_media":82468,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_uag_custom_page_level_css":"","footnotes":""},"categories":[11987],"tags":[],"class_list":["post-80067","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-p-obd2-codes-powertrain"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.6 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P2665 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2665 code, what causes Fuel Shutoff Valve &quot;B&quot; Control Circuit\/Open issues, and how to diagnose and fix common problems to maintain optimal engine performance.\" \/>\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.emanualonline.com\/blog\/p2665-obd2-fuel-shutoff-valve-b-control-circuit-open\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2665 OBD2: Fuel Shutoff Valve &quot;B&quot; Control Circuit\/Open\" \/>\n<meta property=\"og:description\" content=\"What Does the P2665 Code Mean? The P2665 code indicates a problem with the Fuel Shutoff Valve &quot;B&quot; control circuit, specifically that it is open when it\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p2665-obd2-fuel-shutoff-valve-b-control-circuit-open\" \/>\n<meta property=\"og:site_name\" content=\"eManualOnline Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/EmanualOnline\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/jee514\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-25T16:13:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-04T10:11:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2665-obd2-fuel-shutoff-valve-b-control-circuitopen.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"JC Landry\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:site\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"JC Landry\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2665-obd2-fuel-shutoff-valve-b-control-circuit-open#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2665-obd2-fuel-shutoff-valve-b-control-circuit-open\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P2665 OBD2: Fuel Shutoff Valve &#8220;B&#8221; 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The P2665 code indicates a problem with the Fuel Shutoff Valve &#8220;B&#8221; control circuit, specifically that it is open when it should not be. This code is triggered when the engine control module (PCM) detects an issue with the Fuel Pressure Relief Valve signal. What Causes the P2665 Code?&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/comments?post=80067"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80067\/revisions"}],"predecessor-version":[{"id":82470,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80067\/revisions\/82470"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/82468"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=80067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=80067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=80067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}