{"id":76976,"date":"2025-09-17T13:35:16","date_gmt":"2025-09-17T18:35:16","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=76976"},"modified":"2025-09-17T13:35:20","modified_gmt":"2025-09-17T18:35:20","slug":"p0261-obd2-cylinder-1-injector-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0261-obd2-cylinder-1-injector-circuit-low","title":{"rendered":"P0261 OBD2: Cylinder 1 Injector Circuit Low"},"content":{"rendered":"<p>The OBD-II code P0261 indicates a problem with the fuel injector circuit for cylinder number 1. This code is triggered when the Powertrain Control Module (PCM) detects that the voltage in the cylinder 1 injector circuit is too low for proper operation.<\/p>\n<h2>What Does the P0261 Code Mean?<\/h2>\n<p>Code P0261 means that the PCM has identified an abnormal voltage level in the injector circuit for cylinder 1. The PCM uses special transistors known as &#8220;drivers&#8221; to manage the operation of fuel injectors. A low voltage reading indicates that the PCM cannot adequately control the fuel injector, which can lead to performance issues.<\/p>\n<h2>What Causes the P0261 Code?<\/h2>\n<ul>\n<li>Defective fuel injector<\/li>\n<li>Faulty or corroded wiring and connections in the fuel injector circuit<\/li>\n<li>Plugged fuel injector due to dirt or debris<\/li>\n<li>Issues with the PCM itself<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0261 Code?<\/h2>\n<ul>\n<li>Check Engine Light illumination<\/li>\n<li>Engine misfire and rough idle<\/li>\n<li>Poor fuel economy<\/li>\n<li>Possible hesitation during acceleration<\/li>\n<\/ul>\n<h2>How Serious Is the P0261 Code?<\/h2>\n<p>The P0261 code is classified as urgent, indicating that immediate action is necessary. Ignoring this code can lead to significant engine damage and potentially unsafe driving conditions. Therefore, it&#8217;s crucial to address the issue as soon as it&#8217;s identified.<\/p>\n<h2>How to Diagnose the P0261 Code<\/h2>\n<ol>\n<li>Use an OBD-II scanner to confirm the code and check for any additional codes.<\/li>\n<li>Inspect the wiring and connectors leading to the fuel injector for signs of damage or corrosion.<\/li>\n<li>Test the fuel injector for proper operation and resistance.<\/li>\n<li>Check the PCM for functionality and ensure it is not malfunctioning.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0261 Code<\/h2>\n<ul>\n<li>Replacing a defective fuel injector<\/li>\n<li>Repairing or replacing corroded or damaged wiring and connectors<\/li>\n<li>Cleansing or replacing a plugged fuel injector<\/li>\n<li>Reprogramming or replacing the PCM if necessary<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0261 Code?<\/h2>\n<p>The cost to fix the P0261 code can vary significantly based on the underlying issue. Minor repairs, such as fixing wiring or cleaning a fuel injector, may cost between $100 to $300. However, if a fuel injector or PCM replacement is needed, costs can range from $300 to $1,200 or more, depending on the vehicle and labor rates.<\/p>\n<h2>Can I Fix the P0261 Code Myself?<\/h2>\n<p>While some aspects of diagnosing and repairing the P0261 code can be performed by a knowledgeable DIYer, it is essential to understand the entire fuel injection system and have the proper tools for testing. If you are not confident in your skills, it is advisable to seek professional assistance to avoid further complications or damage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The OBD-II code P0261 indicates a problem with the fuel injector circuit for cylinder number 1. This code is triggered when the Powertrain Control Module (PCM) detects that the voltage in the cylinder 1 injector circuit is too low for proper operation. What Does the P0261 Code Mean? Code P0261 means that the PCM has &hellip;<\/p>\n","protected":false},"author":26,"featured_media":96879,"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-76976","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 P0261 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0261 code, what causes cylinder 1 injector 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\/p0261-obd2-cylinder-1-injector-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0261 OBD2: Cylinder 1 Injector Circuit Low\" \/>\n<meta property=\"og:description\" content=\"The OBD-II code P0261 indicates a problem with the fuel injector circuit for cylinder number 1. This code is triggered when the Powertrain Control Module\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0261-obd2-cylinder-1-injector-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:author\" content=\"https:\/\/www.facebook.com\/jee514\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-17T18:35:16+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-17T18:35:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-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\" 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He also loves cats, Johnny Cash and Subarus.","sameAs":["https:\/\/www.facebook.com\/jee514","https:\/\/www.instagram.com\/rat_in_chief\/","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\/09\/p0261-obd2-cylinder-1-injector-circuit-low.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-circuit-low-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0261-obd2-cylinder-1-injector-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 OBD-II code P0261 indicates a problem with the fuel injector circuit for cylinder number 1. This code is triggered when the Powertrain Control Module (PCM) detects that the voltage in the cylinder 1 injector circuit is too low for proper operation. What Does the P0261 Code Mean? Code P0261 means that the PCM has&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/76976","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=76976"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/76976\/revisions"}],"predecessor-version":[{"id":83675,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/76976\/revisions\/83675"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/96879"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=76976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=76976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=76976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}