{"id":79398,"date":"2025-06-18T13:00:16","date_gmt":"2025-06-18T18:00:16","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79398"},"modified":"2025-06-18T13:15:46","modified_gmt":"2025-06-18T18:15:46","slug":"p20e7-obd2-reductant-injection-air-pressure-too-high","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p20e7-obd2-reductant-injection-air-pressure-too-high","title":{"rendered":"P20E7 OBD2: Reductant Injection Air Pressure Too High"},"content":{"rendered":"<h2>What Does the P20E7 Code Mean?<\/h2>\n<p>The P20E7 code is an OBD-II trouble code that indicates the Reductant Injection Air Pressure is too high. This code is particularly relevant in diesel engines that utilize Diesel Exhaust Fluid (DEF) to reduce harmful emissions.<\/p>\n<h2>What Causes the P20E7 Code?<\/h2>\n<p>The P20E7 code can be triggered by several factors, including:<\/p>\n<ul>\n<li>Failure of the Reductant Pressure Sensor<\/li>\n<li>Issues with the Selective Catalytic Reduction (SCR) system<\/li>\n<li>Wiring problems within the DEF system<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P20E7 Code?<\/h2>\n<p>Common symptoms associated with the P20E7 code include:<\/p>\n<ul>\n<li>Failure of Diesel Particulate Filter (DPF) regeneration<\/li>\n<li>Increased emissions<\/li>\n<li>Potential loss of engine power<\/li>\n<li>Warning lights on the dashboard<\/li>\n<\/ul>\n<h2>How Serious Is the P20E7 Code?<\/h2>\n<p>The P20E7 code is classified as urgent because it can lead to significant malfunctions in your vehicle. If left unaddressed, it could cause severe damage to the exhaust system and affect the vehicle&#8217;s performance, making immediate action necessary.<\/p>\n<h2>How to Diagnose the P20E7 Code<\/h2>\n<p>To diagnose the P20E7 code effectively, follow these steps:<\/p>\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 related to the Reductant Pressure Sensor for any signs of damage or corrosion.<\/li>\n<li>Test the Reductant Pressure Sensor using a multimeter to ensure it is functioning correctly.<\/li>\n<li>Examine the SCR system for any blockages or malfunctions.<\/li>\n<\/ol>\n<h2>Common Repairs for the P20E7 Code<\/h2>\n<p>Repairs for the P20E7 code may include:<\/p>\n<ul>\n<li>Replacing the Reductant Pressure Sensor<\/li>\n<li>Repairing or replacing damaged wiring<\/li>\n<li>Addressing issues within the Selective Catalytic Reduction (SCR) system<\/li>\n<li>Replacing the Powertrain Control Module (PCM) if it is faulty<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P20E7 Code?<\/h2>\n<p>The cost to repair the P20E7 code can vary widely based on the underlying issue. On average, repairs can range from $100 to $1,500, depending on parts and labor costs.<\/p>\n<h2>Can I Fix the P20E7 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may be able to diagnose and replace a failing sensor or repair wiring, it is crucial to understand that the underlying issue may require professional expertise. Proper diagnosis is essential to avoid unnecessary repairs and to ensure that the problem is resolved effectively.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does the P20E7 Code Mean? The P20E7 code is an OBD-II trouble code that indicates the Reductant Injection Air Pressure is too high. This code is particularly relevant in diesel engines that utilize Diesel Exhaust Fluid (DEF) to reduce harmful emissions. What Causes the P20E7 Code? The P20E7 code can be triggered by several &hellip;<\/p>\n","protected":false},"author":26,"featured_media":88959,"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-79398","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 P20E7 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P20E7 code, what causes reductant injection air pressure to be too high, 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\/p20e7-obd2-reductant-injection-air-pressure-too-high\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P20E7 OBD2: Reductant Injection Air Pressure Too High\" \/>\n<meta property=\"og:description\" content=\"What Does the P20E7 Code Mean? The P20E7 code is an OBD-II trouble code that indicates the Reductant Injection Air Pressure is too high. 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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\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p20e7-obd2-reductant-injection-air-pressure-too-high-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 P20E7 Code Mean? The P20E7 code is an OBD-II trouble code that indicates the Reductant Injection Air Pressure is too high. This code is particularly relevant in diesel engines that utilize Diesel Exhaust Fluid (DEF) to reduce harmful emissions. What Causes the P20E7 Code? The P20E7 code can be triggered by several&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79398","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=79398"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79398\/revisions"}],"predecessor-version":[{"id":88995,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79398\/revisions\/88995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/88959"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}