{"id":77709,"date":"2025-08-31T10:10:06","date_gmt":"2025-08-31T15:10:06","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77709"},"modified":"2025-08-31T14:16:37","modified_gmt":"2025-08-31T19:16:37","slug":"p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent","title":{"rendered":"P0454 OBD2: Evaporative Emission System Pressure Sensor\/Switch Intermittent"},"content":{"rendered":"<p>The P0454 code is an OBD-II diagnostic trouble code that indicates an intermittent issue with the evaporative emission system pressure sensor or switch. This component plays a crucial role in monitoring the pressure or vacuum within the fuel tank and ensuring the proper functioning of the evaporative control (EVAP) system.<\/p>\n<h2>What Does the P0454 Code Mean?<\/h2>\n<p>When the vehicle&#8217;s Powertrain Control Module (PCM) detects an inaccurate signal from the EVAP pressure sensor, it triggers the P0454 code. The EVAP system is designed to capture fuel vapors from the tank and direct them back into the engine for combustion, thereby minimizing emissions.<\/p>\n<h2>What Causes the P0454 Code?<\/h2>\n<p>Several factors can lead to the triggering of the P0454 code, including:<\/p>\n<ul>\n<li>Fuel tank pressure sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues or damaged connections<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0454 Code?<\/h2>\n<p>The symptoms associated with the P0454 code may include:<\/p>\n<ul>\n<li>Check Engine Light illuminated<\/li>\n<li>Reduced fuel efficiency<\/li>\n<li>Difficulty filling the gas tank<\/li>\n<li>Fuel odor<\/li>\n<\/ul>\n<h2>How Serious Is the P0454 Code?<\/h2>\n<p>The P0454 code is considered moderate in severity. While it may not pose an immediate threat to vehicle safety or functionality, it is essential to address it promptly to prevent potential long-term issues with the EVAP system or engine performance.<\/p>\n<h2>How to Diagnose the P0454 Code<\/h2>\n<p>To diagnose the P0454 code, a mechanic will typically follow these steps:<\/p>\n<ul>\n<li>Use an OBD-II scanner to confirm the presence of the P0454 code.<\/li>\n<li>Inspect the EVAP pressure sensor and associated wiring for damage or disconnections.<\/li>\n<li>Test the sensor\u2019s electrical signals to determine if it is functioning correctly.<\/li>\n<li>Check the PCM for any additional codes or malfunctions.<\/li>\n<\/ul>\n<h2>Common Repairs for the P0454 Code<\/h2>\n<p>Common repairs that may be needed to resolve the P0454 code include:<\/p>\n<ul>\n<li>Replacing the fuel tank pressure sensor<\/li>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Replacing the Powertrain Control Module if found faulty<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0454 Code?<\/h2>\n<p>The cost to fix the P0454 code can vary widely depending on the specific repairs needed. On average, you can expect to pay between $150 and $600, including parts and labor.<\/p>\n<h2>Can I Fix the P0454 Code Myself?<\/h2>\n<p>While some car enthusiasts may be able to diagnose and repair minor wiring issues or replace the fuel tank pressure sensor, it is generally recommended to seek professional assistance. Proper diagnosis often requires specialized tools and knowledge of the vehicle\u2019s systems.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0454 code is an OBD-II diagnostic trouble code that indicates an intermittent issue with the evaporative emission system pressure sensor or switch. This component plays a crucial role in monitoring the pressure or vacuum within the fuel tank and ensuring the proper functioning of the evaporative control (EVAP) system. What Does the P0454 Code &hellip;<\/p>\n","protected":false},"author":26,"featured_media":94537,"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-77709","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 P0454 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0454 code, what causes evaporative emission system pressure sensor\/switch intermittent, 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\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0454 OBD2: Evaporative Emission System Pressure Sensor\/Switch Intermittent\" \/>\n<meta property=\"og:description\" content=\"The P0454 code is an OBD-II diagnostic trouble code that indicates an intermittent issue with the evaporative emission system pressure sensor or switch.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-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=\"2025-08-31T15:10:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-31T19:16:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-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\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0454 OBD2: Evaporative Emission System Pressure Sensor\\\/Switch Intermittent\",\"datePublished\":\"2025-08-31T15:10:06+00:00\",\"dateModified\":\"2025-08-31T19:16:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent\"},\"wordCount\":411,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png\",\"articleSection\":[\"P Codes - OBD2 Powertrain Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent\",\"name\":\"OBD2 Code P0454 \u2013 Causes, Symptoms, and Repairs\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png\",\"datePublished\":\"2025-08-31T15:10:06+00:00\",\"dateModified\":\"2025-08-31T19:16:37+00:00\",\"description\":\"Learn all about the P0454 code, what causes evaporative emission system pressure sensor\\\/switch intermittent, and how to diagnose and fix common issues to maintain optimal engine performance.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#primaryimage\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png\",\"contentUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png\",\"width\":1200,\"height\":675,\"caption\":\"P0454 OBD2: Evaporative Emission System Pressure Sensor\\\/Switch Intermittent\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"P0454 OBD2: Evaporative Emission System Pressure Sensor\\\/Switch Intermittent\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\",\"name\":\"eManualOnline Blog\",\"description\":\"Free Tips on Car Service, Repair and General Stuff\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\",\"name\":\"eManualOnline\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/cdm.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/04\\\/LOGO-NEW.png\",\"contentUrl\":\"https:\\\/\\\/cdm.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/04\\\/LOGO-NEW.png\",\"width\":512,\"height\":82,\"caption\":\"eManualOnline\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/EmanualOnline\\\/\",\"https:\\\/\\\/x.com\\\/eManualOnline\",\"https:\\\/\\\/www.instagram.com\\\/emanual.online\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/emanualonline\",\"https:\\\/\\\/www.pinterest.com\\\/emanualonline\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\",\"name\":\"JC Landry\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"contentUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"caption\":\"JC Landry\"},\"description\":\"JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of\u00a0TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. 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\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"OBD2 Code P0454 \u2013 Causes, Symptoms, and Repairs","description":"Learn all about the P0454 code, what causes evaporative emission system pressure sensor\/switch intermittent, and how to diagnose and fix common issues to maintain optimal engine performance.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent","og_locale":"en_US","og_type":"article","og_title":"P0454 OBD2: Evaporative Emission System Pressure Sensor\/Switch Intermittent","og_description":"The P0454 code is an OBD-II diagnostic trouble code that indicates an intermittent issue with the evaporative emission system pressure sensor or switch.","og_url":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent","og_site_name":"eManualOnline Blog","article_publisher":"https:\/\/www.facebook.com\/EmanualOnline\/","article_author":"https:\/\/www.facebook.com\/jee514","article_published_time":"2025-08-31T15:10:06+00:00","article_modified_time":"2025-08-31T19:16:37+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png","type":"image\/png"}],"author":"JC Landry","twitter_card":"summary_large_image","twitter_creator":"@eManualOnline","twitter_site":"@eManualOnline","twitter_misc":{"Written by":"JC Landry","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#article","isPartOf":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent"},"author":{"name":"JC Landry","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403"},"headline":"P0454 OBD2: Evaporative Emission System Pressure Sensor\/Switch Intermittent","datePublished":"2025-08-31T15:10:06+00:00","dateModified":"2025-08-31T19:16:37+00:00","mainEntityOfPage":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent"},"wordCount":411,"commentCount":0,"publisher":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#primaryimage"},"thumbnailUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png","articleSection":["P Codes - OBD2 Powertrain Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent","url":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent","name":"OBD2 Code P0454 \u2013 Causes, Symptoms, and Repairs","isPartOf":{"@id":"https:\/\/www.emanualonline.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#primaryimage"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#primaryimage"},"thumbnailUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png","datePublished":"2025-08-31T15:10:06+00:00","dateModified":"2025-08-31T19:16:37+00:00","description":"Learn all about the P0454 code, what causes evaporative emission system pressure sensor\/switch intermittent, and how to diagnose and fix common issues to maintain optimal engine performance.","breadcrumb":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#primaryimage","url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png","contentUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png","width":1200,"height":675,"caption":"P0454 OBD2: Evaporative Emission System Pressure Sensor\/Switch Intermittent"},{"@type":"BreadcrumbList","@id":"https:\/\/www.emanualonline.com\/blog\/p0454-obd2-evaporative-emission-system-pressure-sensor-switch-intermittent#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.emanualonline.com\/blog\/"},{"@type":"ListItem","position":2,"name":"P0454 OBD2: Evaporative Emission System Pressure Sensor\/Switch Intermittent"}]},{"@type":"WebSite","@id":"https:\/\/www.emanualonline.com\/blog\/#website","url":"https:\/\/www.emanualonline.com\/blog\/","name":"eManualOnline Blog","description":"Free Tips on Car Service, Repair and General Stuff","publisher":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.emanualonline.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.emanualonline.com\/blog\/#organization","name":"eManualOnline","url":"https:\/\/www.emanualonline.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/cdm.emanualonline.com\/blog\/wp-content\/uploads\/2021\/04\/LOGO-NEW.png","contentUrl":"https:\/\/cdm.emanualonline.com\/blog\/wp-content\/uploads\/2021\/04\/LOGO-NEW.png","width":512,"height":82,"caption":"eManualOnline"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/EmanualOnline\/","https:\/\/x.com\/eManualOnline","https:\/\/www.instagram.com\/emanual.online\/","https:\/\/www.linkedin.com\/company\/emanualonline","https:\/\/www.pinterest.com\/emanualonline\/"]},{"@type":"Person","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403","name":"JC Landry","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","contentUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","caption":"JC Landry"},"description":"JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of\u00a0TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. 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\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-intermittent-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0454-obd2-evaporative-emission-system-pressure-sensorswitch-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 P0454 code is an OBD-II diagnostic trouble code that indicates an intermittent issue with the evaporative emission system pressure sensor or switch. This component plays a crucial role in monitoring the pressure or vacuum within the fuel tank and ensuring the proper functioning of the evaporative control (EVAP) system. What Does the P0454 Code&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77709","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=77709"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77709\/revisions"}],"predecessor-version":[{"id":94575,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77709\/revisions\/94575"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/94537"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}