{"id":77092,"date":"2022-11-01T17:23:53","date_gmt":"2022-11-02T00:23:53","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=77092"},"modified":"2023-09-15T01:45:38","modified_gmt":"2023-09-15T08:45:38","slug":"p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/","title":{"rendered":"P2A04 Code: O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_971f91-29 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_971f91-29 > .kt-inside-inner-col,.kadence-column_971f91-29 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_971f91-29 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_971f91-29 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_971f91-29 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_971f91-29 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_971f91-29{position:relative;}@media all and (max-width: 1024px){.kadence-column_971f91-29 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_971f91-29 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_971f91-29 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-657642  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-209bb5\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_9a252a-5b, .wp-block-kadence-advancedheading.kt-adv-heading_9a252a-5b[data-kb-block=\"kb-adv-heading_9a252a-5b\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_9a252a-5b mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_9a252a-5b[data-kb-block=\"kb-adv-heading_9a252a-5b\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_9a252a-5b img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_9a252a-5b[data-kb-block=\"kb-adv-heading_9a252a-5b\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_9a252a-5b summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_9a252a-5b\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The P2A04 code stands for &ldquo;O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2.&rdquo;<\/li><li>The voltage signals from downstream O2 sensors are usually steady. This code is set when the PCM doesn&rsquo;t receive the correct signal from the downstream oxygen sensor B circuit.<\/li><li>Some common triggers include a leak in the exhaust system, a bad oxygen sensor, and a faulty PCM.<\/li><li>Symptoms to look out for are an illuminated check engine light, reduced engine performance, and poor fuel economy.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Oxygen (O2) sensors\">Oxygen (O2) sensors<\/a> assess the amount of oxygen in the exhaust gases produced by the engine during combustion. They send their readings to the <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control module\">powertrain control module<\/a> (PCM), which adjusts various processes to burn fuel as efficiently as possible. If the PCM detects a problem with the downstream oxygen sensor on bank 2, its diagnostics will log a P2A04 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2A04 Code Mean?<\/h2>\n\n\n\n<p>The <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"diagnostic trouble code\">diagnostic trouble code<\/a> (DTC) P2A04 indicates &ldquo;O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2.&rdquo; It applies to the downstream oxygen sensor on the same side of the engine bank that doesn&rsquo;t have the #1 cylinder.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/downstream-oxygen-sensor-showing-both-banks-1024x681.jpg\" alt=\"downstream oxygen sensor showing both banks\" class=\"wp-image-77126\" width=\"1024\" height=\"681\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/downstream-oxygen-sensor-showing-both-banks-1024x681.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/downstream-oxygen-sensor-showing-both-banks-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/downstream-oxygen-sensor-showing-both-banks-768x511.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/downstream-oxygen-sensor-showing-both-banks-1536x1022.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/downstream-oxygen-sensor-showing-both-banks-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/downstream-oxygen-sensor-showing-both-banks-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/downstream-oxygen-sensor-showing-both-banks.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Also called post-catalytic converter O2 sensors, they measure the oxygen level in the exhaust gases that have been cleaned up of unburned fuel and toxic substances.<\/figcaption><\/figure>\n\n\n\n<p>Downstream oxygen sensors are located after the <a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converter\">catalytic converter<\/a>. Also called post-catalytic converter O2 sensors, they measure the oxygen level in the exhaust gases that have been cleaned up of unburned fuel and toxic substances.<\/p>\n\n\n\n<p>As exhaust gases pass over O2 sensors, they cause the devices&rsquo; voltage to change according to the amount of oxygen they carry. The sensors will send a lower voltage signal when the exhaust is in lean condition (more oxygen) and a higher voltage signal when the exhaust is in rich condition (less oxygen).<\/p>\n\n\n\n<p>The voltage signals from the downstream O2 sensors are usually steady. Upstream oxygen sensors&rsquo; readings fluctuate far more frequently compared to them.<\/p>\n\n\n\n<p>The PCM regularly evaluates the oxygen sensors and their voltage signals If it doesn&rsquo;t receive the right signal from the downstream oxygen sensor B circuit within a certain amount of time, the controller will set code P2A04.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P2A04 can differ depending on the vehicle manufacturer. Check the appropriate repair manual or repair database for the exact code definition.<\/em><\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Causes of the P2A04 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Leak in the exhaust system<\/li><li>Bad oxygen sensor<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty PCM\">Faulty PCM<\/a><\/li><li>Wiring problems, like grounded or shorted wires and loose connectors<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P2A04 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Illuminated check engine light\">Illuminated check engine light<\/a><\/li><li>Reduced engine performance<\/li><li>Higher amounts of fuel consumed<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2A04 Code<\/h2>\n\n\n\n<p>As a generic code, the P2A04 code can show up in various makes and models. But that doesn&rsquo;t mean that there&rsquo;s a single solution that applies to every case.<\/p>\n\n\n\n<p>Don&rsquo;t hesitate to bring your vehicle to a professional mechanic if you don&rsquo;t have the time, tools, and skills to run diagnostic tests on oxygen sensors. Otherwise, you can go ahead and do it yourself to save on labor costs. To help you get started, here is a video that can give you an idea of what the process might involve:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"O2 or Oxygen Sensor Signal\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/ToRGk05_EV4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P2A04 Code<\/h2>\n\n\n\n<p>It&rsquo;s not easy to fix a P2A04 code, especially if you don&rsquo;t have the right tools and know-how to test oxygen sensors. It&rsquo;s why most drivers prefer to entrust their vehicle to reliable mechanics for repairs.<\/p>\n\n\n\n<p>But if you have advanced technical knowledge and hands-on experience in car repair, you can resolve the P2A04 code on your own. Make sure you consult a vehicle-specific <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manual or online repair database\">repair manual or online repair database<\/a> before you get started.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Oxygen (O2) sensors assess the amount of oxygen in the exhaust gases produced by the engine during combustion. They send&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":77127,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1314],"tags":[1189,1323,1190],"ppma_author":[2607,2855],"class_list":{"0":"post-77092","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-catalytic-converter-2","9":"tag-engine-control-module-2","10":"tag-oxygen-sensor-2","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P2A04 Code: O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2 - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn what a P2A04 code means, its possible causes, and the common symptoms associated with it.\" \/>\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.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2A04 Code: O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2 - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Learn what a P2A04 code means, its possible causes, and the common symptoms associated with it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-02T00:23:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-15T08:45:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/oxygen-sensor-triggers-p2a04-code.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1331\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"William Guzenski\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"William \u201cBill\u201d Guzenski has produced hundreds of how-to videos for the automotive community. He\u2019s an ASE Certified Master Automobile Technician, and is affiliated with the Specialty Equipment Market Association (SEMA). He loves attending race events and car shows throughout the country, as well as traveling in his 40-foot motorhome, exploring abandoned mines and ghost towns.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/williamguzenski\\\/\",\"sameAs\":\"\"}],\"headline\":\"P2A04 Code: O2 Sensor Circuit Range\\\/Performance Bank 2 Sensor 2\",\"datePublished\":\"2022-11-02T00:23:53+00:00\",\"dateModified\":\"2023-09-15T08:45:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/\"},\"wordCount\":643,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/11\\\/oxygen-sensor-triggers-p2a04-code.jpg\",\"keywords\":[\"catalytic-converter\",\"engine-control-module\",\"oxygen-sensor\"],\"articleSection\":[\"OBD-II Trouble Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/\",\"name\":\"P2A04 Code: O2 Sensor Circuit Range\\\/Performance Bank 2 Sensor 2 - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/11\\\/oxygen-sensor-triggers-p2a04-code.jpg\",\"datePublished\":\"2022-11-02T00:23:53+00:00\",\"dateModified\":\"2023-09-15T08:45:38+00:00\",\"description\":\"Learn what a P2A04 code means, its possible causes, and the common symptoms associated with it.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/11\\\/oxygen-sensor-triggers-p2a04-code.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/11\\\/oxygen-sensor-triggers-p2a04-code.jpg\",\"width\":2000,\"height\":1331,\"caption\":\"oxygen sensor triggers p2a04 code\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"P2A04 Code: O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2 - In The Garage with CarParts.com","description":"Learn what a P2A04 code means, its possible causes, and the common symptoms associated with it.","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.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/","og_locale":"en_US","og_type":"article","og_title":"P2A04 Code: O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2 - In The Garage with CarParts.com","og_description":"Learn what a P2A04 code means, its possible causes, and the common symptoms associated with it.","og_url":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2022-11-02T00:23:53+00:00","article_modified_time":"2023-09-15T08:45:38+00:00","og_image":[{"width":2000,"height":1331,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/oxygen-sensor-triggers-p2a04-code.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/"},"author":[{"@type":"Person","$id":"4","name":"CarParts.com Research Team","jobTitle":"Expert Automotive Writer","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","sameAs":"https:\/\/www.facebook.com\/carpartscom, https:\/\/twitter.com\/CarPartscom, https:\/\/www.youtube.com\/@CarPartscomOfficial\/, https:\/\/www.instagram.com\/carpartscom\/"},{"@type":"Person","$id":"4","name":"William Guzenski","jobTitle":"ASE Master Automobile Technician","description":"William \u201cBill\u201d Guzenski has produced hundreds of how-to videos for the automotive community. He\u2019s an ASE Certified Master Automobile Technician, and is affiliated with the Specialty Equipment Market Association (SEMA). He loves attending race events and car shows throughout the country, as well as traveling in his 40-foot motorhome, exploring abandoned mines and ghost towns.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/williamguzenski\/","sameAs":""}],"headline":"P2A04 Code: O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2","datePublished":"2022-11-02T00:23:53+00:00","dateModified":"2023-09-15T08:45:38+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/"},"wordCount":643,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/oxygen-sensor-triggers-p2a04-code.jpg","keywords":["catalytic-converter","engine-control-module","oxygen-sensor"],"articleSection":["OBD-II Trouble Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/","url":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/","name":"P2A04 Code: O2 Sensor Circuit Range\/Performance Bank 2 Sensor 2 - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/oxygen-sensor-triggers-p2a04-code.jpg","datePublished":"2022-11-02T00:23:53+00:00","dateModified":"2023-09-15T08:45:38+00:00","description":"Learn what a P2A04 code means, its possible causes, and the common symptoms associated with it.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/oxygen-sensor-triggers-p2a04-code.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/oxygen-sensor-triggers-p2a04-code.jpg","width":2000,"height":1331,"caption":"oxygen sensor triggers p2a04 code"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/oxygen-sensor-triggers-p2a04-code.jpg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/11\/oxygen-sensor-triggers-p2a04-code.jpg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/p2a04-code-o2-sensor-circuit-range-performance-bank-2-sensor-2\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":2855,"user_id":1645,"is_guest":0,"slug":"williamguzenski","display_name":"William Guzenski, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/william-bill-guzenski-carparts-ase-certified-technician.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/william-bill-guzenski-carparts-ase-certified-technician.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/77092","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=77092"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/77092\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/77127"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=77092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=77092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=77092"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=77092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}