{"id":67192,"date":"2022-03-07T02:01:04","date_gmt":"2022-03-07T10:01:04","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=67192"},"modified":"2025-12-18T22:20:55","modified_gmt":"2025-12-19T06:20:55","slug":"p0349-code-camshaft-position-sensor-a-circuit-intermittent-bank-2","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0349-code-camshaft-position-sensor-a-circuit-intermittent-bank-2\/","title":{"rendered":"P0349 Code: Camshaft Position Sensor &#8220;A&#8221; Circuit Intermittent 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-column67192_815940-3e > .kt-inside-inner-col,.kadence-column67192_815940-3e > .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-column67192_815940-3e > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column67192_815940-3e > .kt-inside-inner-col{flex-direction:column;}.kadence-column67192_815940-3e > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column67192_815940-3e > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column67192_815940-3e{position:relative;}@media all and (max-width: 1024px){.kadence-column67192_815940-3e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column67192_815940-3e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column67192_815940-3e inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-3b34a8  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-73378b\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading67192_a11163-9a, .wp-block-kadence-advancedheading.kt-adv-heading67192_a11163-9a[data-kb-block=\"kb-adv-heading67192_a11163-9a\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading67192_a11163-9a mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading67192_a11163-9a[data-kb-block=\"kb-adv-heading67192_a11163-9a\"] 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-heading67192_a11163-9a img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading67192_a11163-9a[data-kb-block=\"kb-adv-heading67192_a11163-9a\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading67192_a11163-9a summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading67192_a11163-9a\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The diagnostic trouble code (DTC) P0349 indicates &ldquo;Camshaft Position Sensor &lsquo;A&rsquo; Circuit Intermittent Bank 2.&rdquo;<\/li>\n\n\n\n<li>Your vehicle&rsquo;s powertrain control module (PCM) will log this code when the crankshaft position sensor stops sending data.<\/li>\n\n\n\n<li>Common causes of the P0349 code are camshaft position sensor failure, damaged tone ring, PCM failure, and issues in the circuits to the camshaft position sensor.<\/li>\n\n\n\n<li>The symptoms of a P0349 code include decreased engine performance, the engine being unable to start, increased fuel consumption, and intermittent bucking or surging.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The camshaft position sensor is responsible for sending signals that inform the powertrain control module (PCM) of the cylinder position. This helps the PCM to control the fuel injectors and ignition coils. If the crankshaft position sensor fails to send data to the PCM, <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"on-board diagnostics\">on-board diagnostics<\/a> will log a P0349 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How a Camshaft Position Sensor Works<\/h2>\n\n\n\n<p>The <a href=\"https:\/\/www.carparts.com\/camshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"camshaft position sensor\">camshaft position sensor<\/a> (CMP) is a part of the spline phaser system operation that helps initiate a vehicle&rsquo;s fuel-injection sequence. Inductive type CMP sensors create an AC voltage signal using a reluctor with teeth that increases and decreases the magnetic field, depending on the distance of each tooth from the sensor.<\/p>\n\n\n\n<p>As the sensor counts the number of teeth on the crankshaft that have passed, data is sent to the PCM to determine the position of the crankshaft on its full rotation. The rate of positional change is then used to measure the engine&rsquo;s rotational speed.<\/p>\n\n\n\n<p>By monitoring the changing magnetic resistance from the timing rotor, the crankshaft position sensor is able to send data to the PCM, helping the computer to calculate the camshaft angle and identify which cylinder is firing.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"526\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/sensor-trace-of-a-2006-Ford-Escape-with-inductive-sensors.jpg\" alt=\"sensor trace of a 2006 Ford Escape with inductive sensors\" class=\"wp-image-82355\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/sensor-trace-of-a-2006-Ford-Escape-with-inductive-sensors.jpg 900w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/sensor-trace-of-a-2006-Ford-Escape-with-inductive-sensors-300x175.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/sensor-trace-of-a-2006-Ford-Escape-with-inductive-sensors-768x449.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/sensor-trace-of-a-2006-Ford-Escape-with-inductive-sensors-150x88.jpg 150w\" sizes=\"(max-width: 900px) 100vw, 900px\"><figcaption class=\"wp-element-caption\">This sensor trace is a 2006 Ford Escape 3.0L with inductive sensors. Red is the crank signal, green is the cam signal, and tan is coil current ramping. We can tell this trace was taken at idle because of the multi-strike firing of the coil. | Image Source: Richard McCuistian.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"447\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/scope-trace-of-the-hall-effect-cam-and-crank-sensors-from-a-2003-Honda-CRV.jpg\" alt=\"scope trace of the hall effect cam and crank sensors from a 2003 Honda CRV\" class=\"wp-image-82356\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/scope-trace-of-the-hall-effect-cam-and-crank-sensors-from-a-2003-Honda-CRV.jpg 900w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/scope-trace-of-the-hall-effect-cam-and-crank-sensors-from-a-2003-Honda-CRV-300x149.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/scope-trace-of-the-hall-effect-cam-and-crank-sensors-from-a-2003-Honda-CRV-768x381.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/scope-trace-of-the-hall-effect-cam-and-crank-sensors-from-a-2003-Honda-CRV-150x75.jpg 150w\" sizes=\"(max-width: 900px) 100vw, 900px\"><figcaption class=\"wp-element-caption\">This is the scope trace of the Hall Effect cam and crank sensors from a 2003 Honda CRV. The blue trace is the cam sensor and the red trace is the crank sensor. | Image Source: Richard McCuistian.<\/figcaption><\/figure>\n\n\n\n<p>For more information that can help you address the P0349 code, read our technical discussion about the <a href=\"https:\/\/www.carparts.com\/blog\/p0341-code-camshaft-position-sensor-a-circuit-range-performance-bank-1-or-single-sensor\/#An_In-Depth_Look_at_the_Camshaft_Position_Sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"camshaft position sensor\">camshaft position sensor<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does a P0349 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code (DTC) P0349 stands for &ldquo;Camshaft Position Sensor &ldquo;A&rdquo; Circuit Intermittent.&rdquo;<\/p>\n\n\n\n<p>The camshaft position sensor measures the camshaft&rsquo;s rotational position and informs the PCM when a cylinder is on its compression stroke.<\/p>\n\n\n\n<p>If the sensor fails or the reference pulse is interrupted, some injection systems could shut down. In some cases, the injectors could also pulse simultaneously.<\/p>\n\n\n\n<p>Once the camshaft position sensor is unable to send any data to the PCM, it will log a code P0349.<\/p>\n\n\n\n<p><em><strong>Note:<\/strong> The definition of code P0123 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 P0349 Code<\/h2>\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<ul class=\"wp-block-list\">\n<li>Damaged tone ring<\/li>\n\n\n\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><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 failure\">Powertrain control module failure<\/a><\/li>\n\n\n\n<li>Intermittent open in the ground or signal circuit to the camshaft position sensor<\/li>\n\n\n\n<li>Intermittent open in the power supply circuit to the camshaft position sensor<\/li>\n\n\n\n<li>Intermittent short to ground in the power supply circuit to the camshaft position sensor<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0349 Code<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Decreased <a href=\"https:\/\/www.carparts.com\/blog\/car-engine-parts\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"engine\">engine<\/a> performance<\/li>\n\n\n\n<li>Increased fuel consumption<\/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=\"Engine unable to start\">Engine unable to start<\/a><\/li>\n\n\n\n<li>Intermittent bucking or surging<\/li>\n\n\n\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<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0349 Code<\/h2>\n\n\n\n<p>DTC P0349 is a generic powertrain code that can be logged in various makes and models. While this might be the case, keep in mind that the steps for diagnosis and repair varies from one vehicle to another.<\/p>\n\n\n\n<p>If you&rsquo;re not familiar with the process of diagnosing trouble codes, it&rsquo;s a good idea to go to the nearest repair shop and have a certified mechanic do the job for you. But if you think you&rsquo;re equipped with the right know-how, then 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 diagnostic process for a P0349 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=\"F150 Camshaft Sensor P0340 P0344 P0345 or P0349 5.4 3V\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/tMaAN6kIidQ?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 P0349 Code<\/h2>\n\n\n\n<p>Attempting to fix a P0349 code can be confusing if you don&rsquo;t have the <a href=\"https:\/\/www.carparts.com\/blog\/best-online-resources-to-help-you-learn-how-to-fix-cars\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"right tools and information\">right tools and information<\/a>. If you&rsquo;re not confident with your DIY skills yet, it might be best to leave the job to the pros.<\/p>\n\n\n\n<p>If you plan on clearing this code on your own, make sure you&rsquo;re equipped with the <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"right manuals\">right manuals<\/a>. Guides like those from Chilton or an ALLDATA subscription contain vehicle-specific repair information, so you might want to check those out before you start.<\/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 camshaft position sensor is responsible for sending signals that inform the powertrain control module (PCM) of the cylinder position&#8230;. <a href=\"https:\/\/www.carparts.com\/blog\/p0349-code-camshaft-position-sensor-a-circuit-intermittent-bank-2\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":67237,"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":[1464,3354],"ppma_author":[2607,2985],"class_list":{"0":"post-67192","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-car-engine-all-articles","10":"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>P0349 Code: Camshaft Position Sensor &quot;A&quot; Circuit Intermittent Bank 2 - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn the definition of code P0349, as well as its most common causes and symptoms. Find out what to do if you get this code on your scanner.\" \/>\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\/p0349-code-camshaft-position-sensor-a-circuit-intermittent-bank-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0349 Code: Camshaft Position Sensor &quot;A&quot; Circuit Intermittent Bank 2 - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Learn the definition of code P0349, as well as its most common causes and symptoms. Find out what to do if you get this code on your scanner.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0349-code-camshaft-position-sensor-a-circuit-intermittent-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=\"2022-03-07T10:01:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-19T06:20:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/03\/automotive-camshaft.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, Richard McCuistian, 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=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0349-code-camshaft-position-sensor-a-circuit-intermittent-bank-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0349-code-camshaft-position-sensor-a-circuit-intermittent-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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