{"id":77337,"date":"2025-09-10T14:42:18","date_gmt":"2025-09-10T19:42:18","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77337"},"modified":"2025-09-10T14:42:18","modified_gmt":"2025-09-10T19:42:18","slug":"p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent","title":{"rendered":"P0189 OBD2: Fuel Temperature Sensor &#8220;B&#8221; Circuit Intermittent"},"content":{"rendered":"<p>The P0189 OBD-II code indicates an issue with the fuel temperature sensor&#8217;s circuit. This code is triggered when the engine control module (PCM) detects an intermittent signal from the fuel temperature sensor, which is crucial for optimal engine performance.<\/p>\n<h2>What Does the P0189 Code Mean?<\/h2>\n<p>The P0189 code specifically refers to the Fuel Temperature Sensor &#8220;B&#8221; Circuit Intermittent. The Fuel Temperature Sensor provides the PCM with the temperature of the fuel, which is essential for managing fuel delivery and engine performance. When the PCM receives an implausible or unstable signal from this sensor, it triggers the P0189 code.<\/p>\n<h2>What Causes the P0189 Code?<\/h2>\n<p>Several factors can lead to the P0189 code being set, including:<\/p>\n<ul>\n<li>Fuel temperature sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues or damaged connectors<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0189 Code?<\/h2>\n<p>Common symptoms associated with the P0189 code may include:<\/p>\n<ul>\n<li>Check Engine Light illuminated<\/li>\n<li>Poor engine performance<\/li>\n<li>Increased fuel consumption<\/li>\n<li>Difficulty starting the vehicle<\/li>\n<\/ul>\n<h2>How Serious Is the P0189 Code?<\/h2>\n<p>The severity of the P0189 code is considered moderate. While it may not pose an immediate threat to the vehicle\u2019s safety, it can affect engine performance and fuel efficiency. It is advisable to diagnose the issue promptly to prevent further complications.<\/p>\n<h2>How to Diagnose the P0189 Code<\/h2>\n<p>Diagnosing the P0189 code typically involves the following steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P0189 code and check for any related codes.<\/li>\n<li>Inspect the fuel temperature sensor and its wiring for any visible damage.<\/li>\n<li>Test the fuel temperature sensor&#8217;s resistance and voltage output.<\/li>\n<li>Check the PCM for proper function and software updates.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0189 Code<\/h2>\n<p>Repairs for the P0189 code may include:<\/p>\n<ul>\n<li>Replacing the faulty fuel temperature sensor<\/li>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Reprogramming or replacing the PCM, if necessary<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0189 Code?<\/h2>\n<p>The cost to fix the P0189 code can vary widely depending on the root cause of the issue. On average, repairs can range from $100 to $500, including parts and labor. If the PCM needs replacement, costs can be significantly higher.<\/p>\n<h2>Can I Fix the P0189 Code Myself?<\/h2>\n<p>If you have automotive repair experience and access to the necessary tools, you may be able to diagnose and repair the P0189 code yourself. However, if you&#8217;re unfamiliar with vehicle electronics or the OBD-II system, it\u2019s recommended to seek help from a professional mechanic to ensure accurate diagnosis and repair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0189 OBD-II code indicates an issue with the fuel temperature sensor&#8217;s circuit. This code is triggered when the engine control module (PCM) detects an intermittent signal from the fuel temperature sensor, which is crucial for optimal engine performance. What Does the P0189 Code Mean? The P0189 code specifically refers to the Fuel Temperature Sensor &hellip;<\/p>\n","protected":false},"author":26,"featured_media":95676,"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-77337","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 P0189 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0189 code, what causes fuel temperature sensor &quot;B&quot; circuit intermittent issues, 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\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0189 OBD2: Fuel Temperature Sensor &quot;B&quot; Circuit Intermittent\" \/>\n<meta property=\"og:description\" content=\"The P0189 OBD-II code indicates an issue with the fuel temperature sensor&#039;s circuit. This code is triggered when the engine control module (PCM) detects\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent\" \/>\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=\"2025-09-10T19:42:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent.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\\\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0189 OBD2: Fuel Temperature Sensor &#8220;B&#8221; 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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\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0189-obd2-fuel-temperature-sensor-b-circuit-intermittent-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 P0189 OBD-II code indicates an issue with the fuel temperature sensor&#8217;s circuit. This code is triggered when the engine control module (PCM) detects an intermittent signal from the fuel temperature sensor, which is crucial for optimal engine performance. What Does the P0189 Code Mean? The P0189 code specifically refers to the Fuel Temperature Sensor&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77337","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=77337"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77337\/revisions"}],"predecessor-version":[{"id":84036,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77337\/revisions\/84036"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/95676"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}