{"id":76977,"date":"2022-10-27T17:58:04","date_gmt":"2022-10-28T00:58:04","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=76977"},"modified":"2025-12-18T22:14:47","modified_gmt":"2025-12-19T06:14:47","slug":"p0390-code-camshaft-position-sensor-b-circuit-bank-2","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0390-code-camshaft-position-sensor-b-circuit-bank-2\/","title":{"rendered":"P0390 Code: Camshaft Position Sensor \u201cB\u201d Circuit Bank 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-column76977_5e4cba-01 > .kt-inside-inner-col,.kadence-column76977_5e4cba-01 > .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-column76977_5e4cba-01 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column76977_5e4cba-01 > .kt-inside-inner-col{flex-direction:column;}.kadence-column76977_5e4cba-01 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column76977_5e4cba-01 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column76977_5e4cba-01{position:relative;}@media all and (max-width: 1024px){.kadence-column76977_5e4cba-01 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column76977_5e4cba-01 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column76977_5e4cba-01 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-642869  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-b9b0ed\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading76977_493d5c-0f, .wp-block-kadence-advancedheading.kt-adv-heading76977_493d5c-0f[data-kb-block=\"kb-adv-heading76977_493d5c-0f\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading76977_493d5c-0f mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading76977_493d5c-0f[data-kb-block=\"kb-adv-heading76977_493d5c-0f\"] 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-heading76977_493d5c-0f img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading76977_493d5c-0f[data-kb-block=\"kb-adv-heading76977_493d5c-0f\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading76977_493d5c-0f summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading76977_493d5c-0f\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The diagnostic trouble code (DTC) P0390 indicates &ldquo;Camshaft Position Sensor &lsquo;B&rsquo; Circuit Bank 2.&rdquo;<\/li>\n\n\n\n<li>Your vehicle&rsquo;s powertrain control module (PCM) will log this code when it doesn&rsquo;t receive a signal from the camshaft position sensor &ldquo;B&rdquo;.<\/li>\n\n\n\n<li>Common causes of the P0390 code are a bad camshaft position sensor, damaged tone ring, and wiring issues.<\/li>\n\n\n\n<li>A vehicle that sets a P0390 code can show symptoms like an illuminated check engine light, the engine failing to start or delivering reduced performance, and poor fuel economy.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\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) uses critical data signals from the <a href=\"https:\/\/www.carparts.com\/camshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"camshaft position sensor\">camshaft position sensor<\/a>(s) and <a href=\"https:\/\/www.carparts.com\/crankshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"crankshaft position sensor\">crankshaft position sensor<\/a> to determine the correct injection sequence and ignition timing. If the camshaft position sensor is unable to send a signal to the PCM, on-board diagnostics will log a P0390 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0390 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> (DTC) P0390 stands for &ldquo;Camshaft Position Sensor &lsquo;B&rsquo; Circuit Bank 2.&rdquo;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"602\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/camshaft-position-sensor-issue-triggers-p0390-code-1024x602.jpg\" alt=\"camshaft position sensor issue triggers p0390 code\" class=\"wp-image-77026\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/camshaft-position-sensor-issue-triggers-p0390-code-1024x602.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/camshaft-position-sensor-issue-triggers-p0390-code-300x176.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/camshaft-position-sensor-issue-triggers-p0390-code-768x452.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/camshaft-position-sensor-issue-triggers-p0390-code-1536x904.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/camshaft-position-sensor-issue-triggers-p0390-code-150x88.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/camshaft-position-sensor-issue-triggers-p0390-code.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The camshaft position sensor determines when the no. 1 cylinder has reached its top dead center (TDC) compression.<\/figcaption><\/figure>\n\n\n\n<p>The camshaft position sensor determines when the no. 1 cylinder has reached its <a href=\"https:\/\/www.carparts.com\/blog\/finding-top-dead-center-why-is-it-critical-to-your-car\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"top dead center\">top dead center<\/a> (TDC) compression. Once the cylinder reaches this phase, the camshaft position sensor will generate a pulse signal that&rsquo;s sent to the PCM.<\/p>\n\n\n\n<p>A camshaft position sensor can either be a hall-effect sensor or a magnetic reluctance sensor. Either way, it reacts to the tone ring to generate a signal.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P0390 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 P0390 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.carparts.com\/blog\/bad-camshaft-position-sensor-symptoms-diagnosis-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Camshaft position sensor failure\">Camshaft position sensor failure<\/a><\/li>\n\n\n\n<li>Broken tone ring<\/li>\n\n\n\n<li>Wiring issues<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Powertrain control module issues\">Powertrain control module issues<\/a><\/li>\n\n\n\n<li>Issues with the variable valve timing system<\/li>\n\n\n\n<li>Problems with the <a href=\"https:\/\/www.carparts.com\/blog\/when-to-replace-timing-chain\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"timing chain\">timing chain<\/a> and related components<\/li>\n<\/ul>\n\n\n\n<div class=\"rsi-card\">\n  <div class=\"rsi-thumb\">\n    <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/d_noimage.jpg\/b_white\/e_sharpen,e_auto_brightness,e_auto_contrast\/f_auto\/q_auto:eco,dpr_auto\/w_873,h_873,c_pad\/images\/set-repb311609-2_1\">\n  <\/div>\n  <div class=\"rsi-info\">\n    <span class=\"rsi-title\">The Best Camshaft Position Sensor Brands You Can Count On<\/span>\n    <span class=\"rsi-desc\">Check out the best camshaft position sensor brands known for delivering consistent fit, accurate signal output, and long-term dependability.<\/span>\n    <a href=\"https:\/\/www.carparts.com\/blog\/the-best-camshaft-position-sensor-brands-you-can-count-on-quickref\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Discover Your Options\">Discover Your Options<\/a>\n  <\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0390 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<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>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/my-car-wont-start-what-should-i-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"No-start condition\">No-start condition<\/a><\/li>\n\n\n\n<li>Decreased engine performance<\/li>\n\n\n\n<li>Poor fuel economy<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0390 Code<\/h2>\n\n\n\n<p>While DTC P0390 is a generic powertrain code that can be logged in vehicles with an OBD-II system, keep in mind that vehicle specifications can affect the diagnostic process. Depending on the make and model, additional steps might be needed to diagnose the trouble code.<\/p>\n\n\n\n<p>Diagnosing this type of trouble code might require you to use a scan tool and inspect the affected system for signs of damage. If you&rsquo;re not familiar with the process of diagnosing trouble codes, it&rsquo;s best to have a certified mechanic do the job for you instead. Otherwise, you can go ahead and do it yourself.<\/p>\n\n\n\n<p>To help you out, here&rsquo;s a video that shows 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-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"2019 F150 P0390 VCT Exhaust Oil control solenoid Fix\/Replacement\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/IUYcb3Rgd-g?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 P0390 Code<\/h2>\n\n\n\n<p>Attempting to fix a DTC P0390 can be frustrating and confusing if you don&rsquo;t have the right tools and technical knowledge. If done incorrectly, it might even lead to further complications and heftier repair costs. Under these circumstances, it&rsquo;s best to leave the job to a certified professional to ensure all the steps and protocols are followed correctly.<\/p>\n\n\n\n<p>But if you know your way around resolving trouble codes, then you&rsquo;re well aware that there&rsquo;s no magic bullet that will fix all DTCs for all makes and models. So if you want to resolve the issue on your own, make sure you have the right repair information before you begin. Guides like those from Chilton or an ALLDATA subscription contain vehicle-specific repair information, which will come in handy when working on your daily driver.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get Camshaft Sensors to Fix a P0390 Code<\/h2>\n\n\n\n<p>A faulty camshaft position sensor is likely triggering a P0390 code. Luckily, replacing a part like this sensor is an easy fix. That said, you shouldn&rsquo;t delay this repair. Letting this issue linger can eventually cause more engine issues. Wondering where&rsquo;s the best place to get a replacement camshaft position sensor? CarParts.com has you covered.<\/p>\n\n\n\n<p>CarParts.com is a trusted source of various engine sensors like camshaft position sensors. We source parts from only the most trusted manufacturers in the industry, so you know they&rsquo;ll fit properly and perform reliably. Our strategically located warehouses also means you can get your order in as fast as two business days.<\/p>\n\n\n\n<p>Performance and reliability is critical when it comes to sensors. Rest assured that you&rsquo;re getting the best when you shop for a <a href=\"https:\/\/www.carparts.com\/camshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"camshaft position sensor\">camshaft position sensor<\/a> here at CarParts.com today!<\/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>The powertrain control module (PCM) uses critical data signals from the camshaft position sensor(s) and crankshaft position sensor to determine&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0390-code-camshaft-position-sensor-b-circuit-bank-2\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":77027,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"_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":[1464,1623,1323],"ppma_author":[2607,2855],"class_list":{"0":"post-76977","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-camshaft-position-sensor","9":"tag-crankshaft-position-sensor-2","10":"tag-engine-control-module-2","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0390 Code: Camshaft Position Sensor \u201cB\u201d Circuit Bank 2 - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what a P0390 code means as well as the most common causes that could trigger this trouble code.\" \/>\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\/p0390-code-camshaft-position-sensor-b-circuit-bank-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0390 Code: Camshaft Position Sensor \u201cB\u201d Circuit Bank 2 - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what a P0390 code means as well as the most common causes that could trigger this trouble code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0390-code-camshaft-position-sensor-b-circuit-bank-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:author\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-28T00:58:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-19T06:14:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/p0390-code-camshaft-position-sensor-issue.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1335\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, William Guzenski, ASE Certified Master Automobile Technician\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/CarPartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CarParts.com Research Team\" \/>\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\\\/p0390-code-camshaft-position-sensor-b-circuit-bank-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0390-code-camshaft-position-sensor-b-circuit-bank-2\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1651\",\"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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