{"id":80021,"date":"2025-05-27T11:38:05","date_gmt":"2025-05-27T16:38:05","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=80021"},"modified":"2025-09-15T22:36:56","modified_gmt":"2025-09-16T03:36:56","slug":"p2629-obd2-o2-sensor-pumping-current-trim-circuit-open","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2629-obd2-o2-sensor-pumping-current-trim-circuit-open","title":{"rendered":"P2629 OBD2: O2 Sensor Pumping Current Trim Circuit\/Open (Bank 2 Sensor 1)"},"content":{"rendered":"<h2>What Does the P2629 Code Mean?<\/h2>\n<p>The P2629 code is an OBD-II diagnostic trouble code that indicates an issue with the oxygen sensor pumping current trim circuit. This code is set when the Powertrain Control Module (PCM) detects a malfunction in the oxygen sensor or its circuit.<\/p>\n<h2>What Causes the P2629 Code?<\/h2>\n<p>Several factors can trigger the P2629 code, including:<\/p>\n<ul>\n<li>Exhaust leak<\/li>\n<li>Oxygen sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issue<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2629 Code?<\/h2>\n<p>Drivers may experience the following symptoms when the P2629 code is present:<\/p>\n<ul>\n<li>Decreased engine performance<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P2629 Code?<\/h2>\n<p>The P2629 code has a moderate severity rating. While it may not immediately threaten the vehicle&#8217;s safety or functionality, it is essential to have it diagnosed within a reasonable time frame to ensure optimal vehicle performance.<\/p>\n<h2>How to Diagnose the P2629 Code<\/h2>\n<p>For accurate diagnosis of the P2629 code, follow these steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P2629 code.<\/li>\n<li>Inspect the wiring and connections related to the oxygen sensor for any damage or disconnection.<\/li>\n<li>Check for exhaust leaks that may affect the oxygen sensor&#8217;s readings.<\/li>\n<li>Test the oxygen sensor&#8217;s functionality using a multimeter.<\/li>\n<li>If necessary, inspect the Powertrain Control Module (PCM) for faults.<\/li>\n<\/ol>\n<h2>Common Repairs for the P2629 Code<\/h2>\n<p>To address the P2629 code, the following repairs may be needed:<\/p>\n<ul>\n<li>Oxygen Sensor Replacement<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2629 Code?<\/h2>\n<p>The cost to fix the P2629 code can vary widely based on the underlying issue. Generally, the price for oxygen sensor replacement can range from $100 to $300, including parts and labor.<\/p>\n<h2>Can I Fix the P2629 Code Myself?<\/h2>\n<p>While some experienced DIYers may be able to replace an oxygen sensor themselves, it is recommended to consult a professional mechanic for diagnosis and repair to avoid further complications.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does the P2629 Code Mean? The P2629 code is an OBD-II diagnostic trouble code that indicates an issue with the oxygen sensor pumping current trim circuit. This code is set when the Powertrain Control Module (PCM) detects a malfunction in the oxygen sensor or its circuit. What Causes the P2629 Code? Several factors can &hellip;<\/p>\n","protected":false},"author":26,"featured_media":82662,"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-80021","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 v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OBD2 Code P2629 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2629 code, what causes O2 sensor pumping current trim circuit\/open, 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\/p2629-obd2-o2-sensor-pumping-current-trim-circuit-open\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2629 OBD2: O2 Sensor Pumping Current Trim Circuit\/Open (Bank 2 Sensor 1)\" \/>\n<meta property=\"og:description\" content=\"What Does the P2629 Code Mean? The P2629 code is an OBD-II diagnostic trouble code that indicates an issue with the oxygen sensor pumping current trim\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p2629-obd2-o2-sensor-pumping-current-trim-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=\"2025-05-27T16:38:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-16T03:36:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2629-obd2-o2-sensor-pumping-current-trim-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\/p2629-obd2-o2-sensor-pumping-current-trim-circuit-open#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p2629-obd2-o2-sensor-pumping-current-trim-circuit-open\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P2629 OBD2: O2 Sensor Pumping Current Trim Circuit\/Open (Bank 2 Sensor 1)\",\"datePublished\":\"2025-05-27T16:38:05+00:00\",\"dateModified\":\"2025-09-16T03:36:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p2629-obd2-o2-sensor-pumping-current-trim-circuit-open\"},\"wordCount\":322,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p2629-obd2-o2-sensor-pumping-current-trim-circuit-open#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2629-obd2-o2-sensor-pumping-current-trim-circuitopen.png\",\"articleSection\":[\"P Codes - 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The P2629 code is an OBD-II diagnostic trouble code that indicates an issue with the oxygen sensor pumping current trim circuit. This code is set when the Powertrain Control Module (PCM) detects a malfunction in the oxygen sensor or its circuit. What Causes the P2629 Code? Several factors can&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80021","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=80021"}],"version-history":[{"count":4,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80021\/revisions"}],"predecessor-version":[{"id":96590,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80021\/revisions\/96590"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/82662"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=80021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=80021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=80021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}