{"id":79505,"date":"2025-06-14T12:53:40","date_gmt":"2025-06-14T17:53:40","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79505"},"modified":"2025-06-14T12:58:25","modified_gmt":"2025-06-14T17:58:25","slug":"p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low","title":{"rendered":"P216B OBD2: Fuel Injector Group &#8220;E&#8221; Supply Voltage Circuit Low"},"content":{"rendered":"<h2>What Does the P216B Code Mean?<\/h2>\n<p>The P216B OBD-II code indicates a problem with the fuel injector group &#8220;E&#8221; supply voltage circuit. This code is triggered when the Powertrain Control Module (PCM) detects that the voltage to the fuel injectors in this group is lower than expected, which can lead to poor engine performance.<\/p>\n<h2>What Causes the P216B Code?<\/h2>\n<ul>\n<li>Fuel injector failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues related to the fuel injector circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P216B Code?<\/h2>\n<ul>\n<li>Engine may run rough<\/li>\n<li>Reduced engine performance<\/li>\n<li>Difficulty starting the engine<\/li>\n<\/ul>\n<h2>How Serious Is the P216B Code?<\/h2>\n<p>The P216B code is classified as urgent, indicating that immediate action is necessary. Ignoring this code can lead to severe damage to the vehicle&#8217;s engine or other components, potentially endangering the driver and passengers.<\/p>\n<h2>How to Diagnose the P216B Code<\/h2>\n<p>Diagnosing the P216B code requires a thorough inspection of the fuel injector circuit, including:<\/p>\n<ul>\n<li>Checking the wiring and connectors for damage or corrosion<\/li>\n<li>Testing the fuel injectors for proper functionality<\/li>\n<li>Using an OBD-II scanner to confirm the code and check for any related trouble codes<\/li>\n<li>Inspecting the PCM for potential failure<\/li>\n<\/ul>\n<h2>Common Repairs for the P216B Code<\/h2>\n<ul>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Replacing faulty fuel injectors<\/li>\n<li>Reprogramming or replacing the PCM if necessary<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P216B Code?<\/h2>\n<p>The cost of repairs for the P216B code can vary widely depending on the underlying issues. Basic repairs, such as fixing wiring, may cost around $100 to $300, while replacing fuel injectors or the PCM can range from $300 to $1,500 or more.<\/p>\n<h2>Can I Fix the P216B Code Myself?<\/h2>\n<p>If you have experience with automotive repairs and diagnostics, you may be able to address some issues related to the P216B code yourself, especially if it involves checking wiring and connectors. However, for more complex problems or if you&#8217;re unsure, it\u2019s recommended to seek professional help to avoid further damage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does the P216B Code Mean? The P216B OBD-II code indicates a problem with the fuel injector group &#8220;E&#8221; supply voltage circuit. This code is triggered when the Powertrain Control Module (PCM) detects that the voltage to the fuel injectors in this group is lower than expected, which can lead to poor engine performance. What &hellip;<\/p>\n","protected":false},"author":26,"featured_media":88687,"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-79505","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 v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P216B \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P216B code, what causes fuel injector group &quot;E&quot; supply voltage 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\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P216B OBD2: Fuel Injector Group &quot;E&quot; Supply Voltage Circuit Low\" \/>\n<meta property=\"og:description\" content=\"What Does the P216B Code Mean? The P216B OBD-II code indicates a problem with the fuel injector group &quot;E&quot; supply voltage circuit. 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He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. 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\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-circuit-low-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p216b-obd2-fuel-injector-group-e-supply-voltage-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":"What Does the P216B Code Mean? The P216B OBD-II code indicates a problem with the fuel injector group &#8220;E&#8221; supply voltage circuit. This code is triggered when the Powertrain Control Module (PCM) detects that the voltage to the fuel injectors in this group is lower than expected, which can lead to poor engine performance. What&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79505","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=79505"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79505\/revisions"}],"predecessor-version":[{"id":88691,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79505\/revisions\/88691"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/88687"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}