{"id":80409,"date":"2025-05-09T09:37:50","date_gmt":"2025-05-09T14:37:50","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=80409"},"modified":"2025-06-04T05:17:15","modified_gmt":"2025-06-04T10:17:15","slug":"p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low","title":{"rendered":"P3455 OBD2: Cylinder 7 Exhaust Valve Control Circuit Low"},"content":{"rendered":"<p>The P3455 OBD-II code indicates a problem with the exhaust valve control circuit for cylinder number seven. This code is part of a system that allows the engine&#8217;s control module (PCM) to deactivate certain cylinders to improve fuel efficiency and reduce emissions.<\/p>\n<h2>What Does the P3455 Code Mean?<\/h2>\n<p>The P3455 code signifies that the PCM has detected that the exhaust valve for cylinder 7 is not functioning as expected. This can mean that the valve is stuck, the control circuit is malfunctioning, or there is a communication issue within the system.<\/p>\n<h2>What Causes the P3455 Code?<\/h2>\n<p>Several factors can trigger the P3455 code, including:<\/p>\n<ul>\n<li>Engine oil level is too low<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Variable valve timing solenoid failure<\/li>\n<li>Wiring issues or electrical faults<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P3455 Code?<\/h2>\n<p>Drivers may experience a range of symptoms when the P3455 code is present, including:<\/p>\n<ul>\n<li>Decreased engine performance<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P3455 Code?<\/h2>\n<p>The P3455 code is categorized as urgent, indicating that immediate attention is necessary to prevent further damage to the vehicle. Ignoring this issue can lead to severe engine problems, affecting both performance and safety.<\/p>\n<h2>How to Diagnose the P3455 Code<\/h2>\n<p>To properly diagnose the P3455 code, a technician will typically:<\/p>\n<ul>\n<li>Use an OBD-II scanner to confirm the presence of the P3455 code<\/li>\n<li>Inspect engine oil levels and quality<\/li>\n<li>Examine the wiring and connectors related to the exhaust valve control circuit<\/li>\n<li>Test the variable valve timing solenoid for proper operation<\/li>\n<li>Check the PCM for faults or updates that may be required<\/li>\n<\/ul>\n<h2>Common Repairs for the P3455 Code<\/h2>\n<p>Common repairs to resolve the P3455 code may include:<\/p>\n<ul>\n<li>Refilling or changing the engine oil<\/li>\n<li>Replacing the variable valve timing solenoid<\/li>\n<li>Repairing or replacing damaged wiring and connectors<\/li>\n<li>Reprogramming or replacing the PCM if necessary<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P3455 Code?<\/h2>\n<p>The cost to fix the P3455 code can vary significantly depending on the underlying cause. Generally, repairs can range from $100 to $1,000, depending on whether it involves simple oil changes or more complex repairs like replacing the PCM.<\/p>\n<h2>Can I Fix the P3455 Code Myself?<\/h2>\n<p>While some basic checks, such as inspecting oil levels or wiring, can be performed by an owner, diagnosing and repairing the P3455 code often requires specialized tools and knowledge. If you&#8217;re not experienced with automotive repair, it\u2019s best to consult a professional mechanic to ensure the issue is resolved correctly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P3455 OBD-II code indicates a problem with the exhaust valve control circuit for cylinder number seven. This code is part of a system that allows the engine&#8217;s control module (PCM) to deactivate certain cylinders to improve fuel efficiency and reduce emissions. What Does the P3455 Code Mean? The P3455 code signifies that the PCM &hellip;<\/p>\n","protected":false},"author":26,"featured_media":80960,"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-80409","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 v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P3455 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P3455 code, what causes cylinder 7 exhaust valve control circuit low, and how to diagnose and fix common issues 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\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P3455 OBD2: Cylinder 7 Exhaust Valve Control Circuit Low\" \/>\n<meta property=\"og:description\" content=\"The P3455 OBD-II code indicates a problem with the exhaust valve control circuit for cylinder number seven. This code is part of a system that allows the\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low\" \/>\n<meta property=\"og:site_name\" content=\"eManualOnline Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/EmanualOnline\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-09T14:37:50+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-04T10:17:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low.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 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He learned to write after spending over a decade doing it.","sameAs":["https:\/\/www.linkedin.com\/in\/jean-claude-landry-857781186\/"],"url":"https:\/\/www.emanualonline.com\/blog\/author\/jclandry"}]}},"uagb_featured_image_src":{"full":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p3455-obd2-cylinder-7-exhaust-valve-control-circuit-low-1050x525.png",1050,525,true]},"uagb_author_info":{"display_name":"JC Landry","author_link":"https:\/\/www.emanualonline.com\/blog\/author\/jclandry"},"uagb_comment_info":0,"uagb_excerpt":"The P3455 OBD-II code indicates a problem with the exhaust valve control circuit for cylinder number seven. This code is part of a system that allows the engine&#8217;s control module (PCM) to deactivate certain cylinders to improve fuel efficiency and reduce emissions. What Does the P3455 Code Mean? The P3455 code signifies that the PCM&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80409","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=80409"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80409\/revisions"}],"predecessor-version":[{"id":80962,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80409\/revisions\/80962"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/80960"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=80409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=80409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=80409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}