{"id":76171,"date":"2022-10-16T22:46:22","date_gmt":"2022-10-17T05:46:22","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=76171"},"modified":"2023-08-31T23:15:56","modified_gmt":"2023-09-01T06:15:56","slug":"p2433-code-secondary-air-injection-system-air-flow-pressure-sensor-circuit-high-bank-1","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2433-code-secondary-air-injection-system-air-flow-pressure-sensor-circuit-high-bank-1\/","title":{"rendered":"P2433 Code: Secondary Air Injection System Air Flow\/Pressure Sensor Circuit High Bank 1"},"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_7b968e-95 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_7b968e-95 > .kt-inside-inner-col,.kadence-column_7b968e-95 > .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_7b968e-95 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_7b968e-95 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_7b968e-95 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_7b968e-95 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_7b968e-95{position:relative;}@media all and (max-width: 1024px){.kadence-column_7b968e-95 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_7b968e-95 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_7b968e-95 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-e7e635  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-67a2fb\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_c6aee9-0c, .wp-block-kadence-advancedheading.kt-adv-heading_c6aee9-0c[data-kb-block=\"kb-adv-heading_c6aee9-0c\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_c6aee9-0c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_c6aee9-0c[data-kb-block=\"kb-adv-heading_c6aee9-0c\"] 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_c6aee9-0c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_c6aee9-0c[data-kb-block=\"kb-adv-heading_c6aee9-0c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_c6aee9-0c summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_c6aee9-0c\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Diagnostic trouble code (DTC) P2433 stands for &ldquo;Secondary Air Injection System Air Flow\/Pressure Sensor Circuit High Bank 1.&rdquo; The powertrain control module (PCM) sets this code when it detects a voltage or resistance that&rsquo;s too high from the air pressure sensor circuit located in Bank 1.<\/li><li>Some common causes behind the P2433 code include a bad secondary air system pressure sensor, an air control solenoid malfunction, and PCM problems.<\/li><li>Symptoms of the P2433 code include an illuminated check engine light and noise from the secondary air injection system.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>During cold engine start-up, the secondary air injection system (AIR) pumps fresh air into the exhaust system. This aids in the combustion of the highly rich exhaust emissions that the engine produces as it warms up. The engine computer monitors the AIR system&rsquo;s functionality using an AIR pressure sensor. P2433 is a generic trouble code that&rsquo;s related to the pressure sensor circuit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2433 Code Mean?<\/h2>\n\n\n\n<p><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> P2433 stands for &ldquo;Secondary Air Injection System Air Flow\/Pressure Sensor Circuit High Bank 1.&rdquo;<\/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\/10\/mechanic-looking-for-p2433-code-solution-1024x682.jpg\" alt=\"mechanic looking for p2433 code solution\" class=\"wp-image-76175\" width=\"1024\" height=\"682\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-looking-for-p2433-code-solution-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-looking-for-p2433-code-solution-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-looking-for-p2433-code-solution-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-looking-for-p2433-code-solution-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-looking-for-p2433-code-solution-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-looking-for-p2433-code-solution-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-looking-for-p2433-code-solution-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-looking-for-p2433-code-solution.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>DTC P2433 is a generic trouble code, so various makes and models can log it.<\/figcaption><\/figure>\n\n\n\n<p>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) sets the code when it detects a voltage or resistance that&rsquo;s too high from the air pressure sensor circuit located in Bank 1.<\/p>\n\n\n\n<p>The secondary air injection system reduces hydrocarbon exhaust emissions during engine start-up when the weather is cold. The power control module (PCM) activates the <a href=\"https:\/\/www.carparts.com\/air-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"air pump\">air pump<\/a>, which supplies pressurized fresh air to the catalyst or <a href=\"https:\/\/www.carparts.com\/exhaust-manifold\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"exhaust manifolds\">exhaust manifolds<\/a>. This accelerates the converter&rsquo;s operation and lowers the level of harmful exhaust gas.<\/p>\n\n\n\n<p>The air system pressure sensor monitors pressure at the air control solenoid valve inlet to open and close the valve at predetermined temperatures and pressures based on manufacturer recommendations.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P2433 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Causes of the P2433 Code?<\/h2>\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<ul class=\"wp-block-list\"><li>Bad secondary air system pressure sensor<\/li><li>Air control solenoid malfunction<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM problems\">PCM problems<\/a><\/li><li>Wiring issues<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P2433 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Noise from the secondary air injection system<\/li><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><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2433 Code<\/h2>\n\n\n\n<p>DTC P2433 is a generic trouble code, so various makes and models can log it. However, this doesn&rsquo;t mean that there&rsquo;s a universal diagnostic procedure and solution for it.<\/p>\n\n\n\n<p>You can always choose to bring your car to a qualified mechanic to get a precise diagnosis. But if you&rsquo;re confident you have the tools and know-how to diagnose the problem, you can do it yourself.<\/p>\n\n\n\n<p>Here&rsquo;s a video of what the diagnostic procedure for this code 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-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"2010 Volkswagen Jetta 2.5L- P2433 Secondary Air Pressure Sensor Signal Short to Plus\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/oHjc0Q-P2PA?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 P2433 Code<\/h2>\n\n\n\n<p>The process to resolve a P2433 code can vary depending on the year, make, and model of the car. So if you want to address the issue on your own,&nbsp; make sure to gather vehicle-specific repair information before proceeding. You might want to check out repair guides like those from Chilton or an ALLDATA subscription.<\/p>\n\n\n\n<p>But if you don&rsquo;t have the tools, knowledge, or DIY experience needed for the job, you can always take your vehicle to an auto repair shop. Licensed mechanics will know how to resolve this trouble code.<\/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>During cold engine start-up, the secondary air injection system (AIR) pumps fresh air into the exhaust system. This aids in&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2433-code-secondary-air-injection-system-air-flow-pressure-sensor-circuit-high-bank-1\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":76174,"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":[1820,1323,1238],"ppma_author":[2607,2855],"class_list":{"0":"post-76171","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-air-pump","9":"tag-engine-control-module-2","10":"tag-exhaust-manifold-2","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P2433 Code: Secondary Air Injection System Air Flow\/Pressure Sensor Circuit High Bank 1 - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn what a P2433 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\/p2433-code-secondary-air-injection-system-air-flow-pressure-sensor-circuit-high-bank-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2433 Code: Secondary Air Injection System Air Flow\/Pressure Sensor Circuit High Bank 1 - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Learn what a P2433 code means, its possible causes, and the common symptoms associated with it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p2433-code-secondary-air-injection-system-air-flow-pressure-sensor-circuit-high-bank-1\/\" \/>\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=\"2022-10-17T05:46:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-01T06:15:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-in-blue-clothes-encounters-p2433-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1365\" \/>\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\\\/p2433-code-secondary-air-injection-system-air-flow-pressure-sensor-circuit-high-bank-1\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2433-code-secondary-air-injection-system-air-flow-pressure-sensor-circuit-high-bank-1\\\/\"},\"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. 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