{"id":1031,"date":"2026-08-01T15:14:00","date_gmt":"2026-08-01T19:14:00","guid":{"rendered":"https:\/\/www.4roadservice.com\/resources\/?page_id=1031"},"modified":"2026-08-01T15:18:25","modified_gmt":"2026-08-01T19:18:25","slug":"detroit-diesel-spn-27-fmi-11-egr-valve-circuit-fault","status":"publish","type":"page","link":"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-27-fmi-11-egr-valve-circuit-fault\/","title":{"rendered":"Detroit Diesel SPN 27 FMI 11 \u2013 EGR Valve Circuit Fault"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-fault-codes-dd13-dd15-dd16\/\">\u2190 Back to Detroit Diesel Fault Codes<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Detroit Diesel SPN 27 FMI 11 indicates an electrical circuit fault at the EGR valve. This code appears on DD13, DD15, and DD16 engines and means the ECM has detected an abnormal electrical condition in the EGR valve control circuit, preventing proper valve operation and affecting exhaust gas recirculation control.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Symptoms<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Check engine light on <\/li>\n\n\n\n<li>EGR or emissions warning light illuminated <\/li>\n\n\n\n<li>Rough idle or unstable engine operation <\/li>\n\n\n\n<li>Reduced engine performance <\/li>\n\n\n\n<li>Engine derate possible Increased <\/li>\n\n\n\n<li>NOx emissions <\/li>\n\n\n\n<li>May appear alongside other EGR related codes<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Cause<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This code triggers when the ECM detects an electrical fault in the EGR valve circuit. Common causes include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Open or short circuit in the EGR valve wiring harness <\/li>\n\n\n\n<li>Corroded or damaged EGR valve connector <\/li>\n\n\n\n<li>Failed EGR valve solenoid or actuator motor <\/li>\n\n\n\n<li>Water intrusion at the EGR valve connector <\/li>\n\n\n\n<li>Chafed or broken wiring between ECM and EGR valve <\/li>\n\n\n\n<li>Failed ECM output driver for the EGR valve circuit <\/li>\n\n\n\n<li>Poor ground connection at the EGR valve<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Can You Keep Driving?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Limited driving may be possible but without proper electrical function the EGR valve cannot be controlled by the ECM. This affects combustion efficiency and emissions control and a derate condition is likely to follow if the fault is not resolved.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Recommended Action<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Inspect the EGR valve wiring harness and connector for damage, corrosion, or water intrusion. Check for broken or chafed wires between the ECM and EGR valve. Test the EGR valve solenoid resistance against specification. If wiring and solenoid test correctly have the ECM output circuit evaluated by a qualified diesel technician.<\/p>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1771789499992\"><strong class=\"schema-faq-question\">What does Detroit Diesel SPN 27 FMI 11 mean?<\/strong> <p class=\"schema-faq-answer\">It means the ECM has detected an electrical circuit fault at the EGR valve, preventing proper control of exhaust gas recirculation.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1771789501411\"><strong class=\"schema-faq-question\">What causes SPN 27 FMI 11?<\/strong> <p class=\"schema-faq-answer\">The most common causes are an open or short circuit in the EGR valve wiring, a corroded connector, water intrusion at the connector, or a failed EGR valve solenoid.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1771789502305\"><strong class=\"schema-faq-question\">Can I keep driving with SPN 27 FMI 11?<\/strong> <p class=\"schema-faq-answer\">Short distances may be possible but without electrical function the EGR valve cannot operate and a derate condition is likely to follow.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1771789503081\"><strong class=\"schema-faq-question\">Will SPN 27 FMI 11 cause a derate?<\/strong> <p class=\"schema-faq-answer\">Yes. If the ECM cannot control the EGR valve due to a circuit fault it will trigger derate conditions to protect the engine and limit emissions.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1771789504066\"><strong class=\"schema-faq-question\">How do I clear SPN 27 FMI 11?<\/strong> <p class=\"schema-faq-answer\">Inspect and repair the EGR valve wiring and connector. Test the solenoid and replace the valve if faulty. Once the ECM confirms correct electrical function of the EGR valve circuit the code should clear.<\/p> <\/div> <\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Related codes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-27-fmi-9-egr-valve-position-error\/\" data-type=\"link\" data-id=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-27-fmi-9-egr-valve-position-error\/\">SPN 27 FMI 9<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-2659-fmi-0\/\" data-type=\"link\" data-id=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-2659-fmi-0\/\">SPN 2659 FMI 0<\/a> <\/li>\n\n\n\n<li><a href=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-4364-fmi-18\/\" data-type=\"link\" data-id=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-4364-fmi-18\/\">SPN 4364 FMI 18 <\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-4360-fmi-18-aftertreatment-scr-inducement-active\/\" data-type=\"link\" data-id=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-4360-fmi-18-aftertreatment-scr-inducement-active\/\">SPN 4360 FMI 18<\/a><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Need Immediate Help With This Fault Code?<\/h2>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">If your engine is derating, losing power, or unable to complete regeneration, don\u2019t risk further damage or costly downtime.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use 4RoadService to locate mobile truck repair, dealer diagnostics, or emergency roadside assistance near your location.<\/p>\n\n\n\n<div class=\"wp-block-buttons has-off-white-background-color has-background is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.4roadservice.com\/truck-dealers\">Find Truck Repair Near Me<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-align-center wp-element-button\" href=\"https:\/\/www.4roadservice.com\/truck-repair\">Find Mobile Road Service<\/a><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Important Notice<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The information provided above is for general informational purposes only and should not replace official OEM service procedures. Always consult the manufacturer\u2019s service manual or a qualified diesel technician before performing repairs. Operating a vehicle with active fault codes may result in further damage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u2190 Back to Detroit Diesel Fault Codes Detroit Diesel SPN 27 FMI 11 indicates an electrical circuit fault at the EGR valve. This code appears on DD13, DD15, and DD16 engines and means the ECM has detected an abnormal electrical condition in the EGR valve control circuit, preventing proper valve operation and affecting exhaust gas &hellip; <a href=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-27-fmi-11-egr-valve-circuit-fault\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Detroit Diesel SPN 27 FMI 11 \u2013 EGR Valve Circuit Fault<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1031","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Detroit Diesel SPN 27 FMI 11 \u2013 EGR Valve Circuit Fault<\/title>\n<meta name=\"description\" content=\"Detroit Diesel SPN 27 FMI 11 means the EGR valve circuit has a fault. 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Learn symptoms, causes, derate risk and how to fix.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-27-fmi-11-egr-valve-circuit-fault\/\" \/>\n<meta property=\"og:site_name\" content=\"4RoadService Resources\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/4roadservice\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-01T19:18:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.4roadservice.com\/resources\/wp-content\/uploads\/2015\/08\/logo-sidebar@2x.png\" \/>\n\t<meta property=\"og:image:width\" content=\"380\" \/>\n\t<meta property=\"og:image:height\" content=\"64\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@4RoadService\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/www.4roadservice.com\\\/resources\\\/detroit-diesel-spn-27-fmi-11-egr-valve-circuit-fault\\\/\",\"url\":\"https:\\\/\\\/www.4roadservice.com\\\/resources\\\/detroit-diesel-spn-27-fmi-11-egr-valve-circuit-fault\\\/\",\"name\":\"Detroit Diesel SPN 27 FMI 11 \u2013 EGR Valve Circuit Fault\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.4roadservice.com\\\/resources\\\/#website\"},\"datePublished\":\"2026-08-01T19:14:00+00:00\",\"dateModified\":\"2026-08-01T19:18:25+00:00\",\"description\":\"Detroit Diesel SPN 27 FMI 11 means the EGR valve circuit has a fault. 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If the ECM cannot control the EGR valve due to a circuit fault it will trigger derate conditions to protect the engine and limit emissions.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-27-fmi-11-egr-valve-circuit-fault\/#faq-question-1771789504066","position":5,"url":"https:\/\/www.4roadservice.com\/resources\/detroit-diesel-spn-27-fmi-11-egr-valve-circuit-fault\/#faq-question-1771789504066","name":"How do I clear SPN 27 FMI 11?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Inspect and repair the EGR valve wiring and connector. Test the solenoid and replace the valve if faulty. 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