{"id":15876,"date":"2021-10-15T02:13:00","date_gmt":"2021-10-15T09:13:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=15876"},"modified":"2026-02-10T22:22:12","modified_gmt":"2026-02-11T06:22:12","slug":"p0038-heated-oxygen-sensor-heater-control-circuit-high-bank-1-sensor-2","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0038-heated-oxygen-sensor-heater-control-circuit-high-bank-1-sensor-2\/","title":{"rendered":"P0038: Heated Oxygen Sensor Heater Control Circuit High (Bank 1, Sensor 2)\ufeff"},"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\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column15876_66da8c-72 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column15876_66da8c-72 > .kt-inside-inner-col,.kadence-column15876_66da8c-72 > .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-column15876_66da8c-72 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column15876_66da8c-72 > .kt-inside-inner-col{flex-direction:column;}.kadence-column15876_66da8c-72 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column15876_66da8c-72 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column15876_66da8c-72{position:relative;}@media all and (max-width: 1024px){.kadence-column15876_66da8c-72 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column15876_66da8c-72 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column15876_66da8c-72 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-7a59c6  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-f4eba2\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading15876_3599c1-d3, .wp-block-kadence-advancedheading.kt-adv-heading15876_3599c1-d3[data-kb-block=\"kb-adv-heading15876_3599c1-d3\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading15876_3599c1-d3 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading15876_3599c1-d3[data-kb-block=\"kb-adv-heading15876_3599c1-d3\"] 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-heading15876_3599c1-d3 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading15876_3599c1-d3[data-kb-block=\"kb-adv-heading15876_3599c1-d3\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading15876_3599c1-d3 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading15876_3599c1-d3\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Diagnostic trouble code P0038 stands for &ldquo;Heated Oxygen Sensor Heater Control Circuit High (Bank 1, Sensor 2).&rdquo; This means that the condition of the heater control circuit of the post catalyst&nbsp; HO2s on bank 1 is outside the normal range.<\/li>\n\n\n\n<li>A bad or failing oxygen sensor and circuit issues can trigger this code.<\/li>\n\n\n\n<li>There are no other symptoms for a logged P0038 code other than an illuminated check engine light.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Inside every heated oxygen sensor (HO2S) runs a heater wire that helps get the device up to operating temperature quickly. When the PCM detects a discrepancy between the desired and actual state of the heater control circuit of the post-catalyst HO2S on bank 1, it may trigger code P0038.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0038 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code (DTC) P0038 stands for &ldquo;HO2S Heater Control Circuit High (Bank 1 Sensor 2)&rdquo;. <\/p>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Oxygen sensors\">Oxygen sensors<\/a> evaluate the amount of oxygen in the exhaust gas and send their readings to the powertrain control module (PCM). This data guides the adjustments made to the engine&rsquo;s operating parameters, such as air and fuel intake, to maximize its performance.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/checking-an-oxygen-sensor-1024x683.jpeg\" alt=\"checking an oxygen sensor\" class=\"wp-image-15895\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/checking-an-oxygen-sensor-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/checking-an-oxygen-sensor-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/checking-an-oxygen-sensor-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/checking-an-oxygen-sensor-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/checking-an-oxygen-sensor-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/checking-an-oxygen-sensor.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Code P0038 may be set if the PCM detects a discrepancy between the desired and actual state of the heater control circuit of the post-catalyst HO2S on bank 1.<\/figcaption><\/figure>\n\n\n\n<p>The oxygen sensors can only attain their full precision once they reach a certain temperature. Their reliance on heat poses a problem when you start up your car for the first time in a day. The oxygen content readings taken during the warm-up period won&rsquo;t have the accuracy the PCM needs to set the best parameters for the engine.<\/p>\n\n\n\n<p>Heated oxygen sensors resolve this issue with the help of heater wires that raise their temperature faster than the device can warm up alone. In an OBD-II-compliant vehicle, the heated oxygen sensor has two wires for the heater element and two more for the sensor itself. The oxygen sensor in pre-OBD vehicles often only contains one wire.<\/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<p>The PCM constantly looks for out-of-the-ordinary voltages or current draw in the heater circuits.<\/p>\n\n\n\n<p>The oxygen sensor 2 unit sits on the same side as the engine&rsquo;s cylinder 1. It measures the oxygen content of the exhaust gases after the <a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converter\">catalytic converter<\/a> cleaned their emissions.<\/p>\n\n\n\n<p>If you&rsquo;re looking for Bank 1 in your vehicle, this guide on <a href=\"https:\/\/www.carparts.com\/blog\/p0141-code-oxygen-sensor-heater-circuit-malfunction-bank-1-sensor-2\/#Bank_1_vs_Bank_2\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"sensor locations\">sensor locations<\/a> can help you. For a technical understanding of the heating process of oxygen sensors, you can read our discussion about <a href=\"https:\/\/www.carparts.com\/blog\/p0141-code-oxygen-sensor-heater-circuit-malfunction-bank-1-sensor-2\/#Why_Do_Oxygen_Sensors_Need_Heat\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"why oxygen sensors need heat\">why oxygen sensors need heat<\/a>. Otherwise, continue reading the next section for the possible causes of P0038.<\/p>\n\n\n\n<p><em><strong>Note: <\/strong>The Society of Automotive Engineers (SAE) set the generic code P0038. But the code description may vary depending on the vehicle manufacturer.  For example, you may find the definition &ldquo;Heated oxygen sensor (HO2S) 2 Bank 1 &ndash; heater voltage high&rdquo; in some Nissan cars.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P0038 Code?<\/h2>\n\n\n\n<p>Several factors may cause the heater control circuit of the bank 1 downstream oxygen sensor to display excessively high voltage levels. These include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bad or <a href=\"https:\/\/www.carparts.com\/blog\/bad-o2-sensor-symptoms-causes-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"failing oxygen sensor\">failing oxygen sensor<\/a><\/li>\n\n\n\n<li>Problems in the O2 sensor circuit, such as open or shorts<\/li>\n\n\n\n<li>Faulty PCM (rare)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/o2-sensor-replacement-1024x683.jpeg\" alt=\"o2 sensor replacement\" class=\"wp-image-15894\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/o2-sensor-replacement-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/o2-sensor-replacement-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/o2-sensor-replacement-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/o2-sensor-replacement-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/o2-sensor-replacement-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/o2-sensor-replacement.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">A failing oxygen sensor can cause P0038 code.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0038 Code?<\/h2>\n\n\n\n<p>The PCM keeps track of the catalytic converter&rsquo;s operation by checking the readings from the post-catalyst oxygen sensors. While code P0038 won&rsquo;t severely compromise your car, it may cause notable symptoms like:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>An <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 P0038 Code<\/h2>\n\n\n\n<p>Oxygen sensors lend themselves to fairly easy evaluation and testing. While most car owners should bring their vehicle to the auto shop, drivers with some DIY skills may be able to diagnose code P0038.<\/p>\n\n\n\n<p>You can watch the following videos to get a better understanding of the P0038 diagnosis:<\/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=\"Rear Oxygen Sensor P0037 and P0038 | Testing and Replacement\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/6FO7y3A0Kws?start=81&amp;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<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\">\nhttps:\/\/www.youtube.com\/watch?v=fBQ-1pqSoXM&amp;t=64s\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0038 Code<\/h2>\n\n\n\n<p>In most cases, replacing the faulty oxygen sensor will eliminate the problem responsible for the P0038 code. The exact fix, however, will likely differ based on the make and\/or model of the vehicle. A P0038 <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\/dodge\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Dodge\">Dodge<\/a> case, for example, may entail a different repair than those that have worked for a P0038 in a <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\/chrysler\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Chrysler\">Chrysler<\/a>.<\/p>\n\n\n\n<p>Check the sensor and its <a href=\"https:\/\/www.carparts.com\/wiring-harness\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wiring harness\">wiring harness<\/a> for visible signs of damage that can cause short circuits. Disconnect the oxygen sensor and ensure that the right amount of ground is present.<\/p>\n\n\n\n<p>You can also inspect the heater control ground circuit for damage. Connect an ohmmeter to the heater element and run a resistance test.<\/p>\n\n\n\n<p>As with any automotive repair task, we suggest that you <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"consult a repair manual\">consult a repair manual<\/a> to guide you through the entire diagnosis and repair of the P0038 code.<\/p>\n\n\n\n<p>To search our database for other OBD2 codes, see our <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD codes list\">OBD codes list<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Replacing Your Vehicle&rsquo;s Oxygen Sensor to Fix DTC P0038<\/h2>\n\n\n\n<p>One of the easiest and most effective ways to fix DTC P0038 is to repair or replace a faulty oxygen sensor. Fortunately, finding a replacement sensor that&rsquo;s compatible with your vehicle is easy with the help of <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a>.<\/p>\n\n\n\n<p>We source our oxygen sensors from top manufacturers. Each one is carefully vetted by industry experts to ensure they&rsquo;re built to last. You won&rsquo;t have to worry about your new sensors malfunctioning or failing shortly after obtaining them.<\/p>\n\n\n\n<p>The best part? You won&rsquo;t even have to take one step outside your home to get your hands on new parts for your ride. Our distribution centers are strategically located across the US to ensure fast and efficient shipping.<\/p>\n\n\n\n<p>To get started, download our mobile app or visit our website. Fill out our vehicle selector and use the search filters to shop according to your preferred brand, price range, and features.&nbsp;<br>Fix DTC P0038 by ordering a replacement <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensor\">oxygen sensor<\/a> now!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Products Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\">\n\n    <!-- start of editable content -->\n\n    <a href=\"https:\/\/www.carparts.com\/catalytic%20converter\" target=\"_blank\" aria-label=\"catalytic converter\" rel=\"noopener\">\n        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repf960330_1\" alt=\"catalytic converter\">\n\t<strong>Catalytic Converter<\/strong>\n    <\/a>\n\n    <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" aria-label=\"oxygen sensor\" rel=\"noopener\">\n        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/reph960923_1\" alt=\"oxygen sensor\">\n\t<strong>Oxygen Sensor<\/strong>\n    <\/a>\n\n    <!-- end of editable content -->\n\n<\/div>\n\n\n\n<div class=\"shop-project\">\n\n    <h2>Shop this Project<\/h2>\n\n    <ul class=\"shop-project-list\">\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repb960901\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repb960901_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated, With Female Connector\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repb960901_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated, With Female Connector\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repb960901\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated, With Female Connector\">DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated, With Female Connector<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$22.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repb960901\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960915_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960915_1\" alt=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated\">DriveWire &ndash; Oxygen Sensor, 4-Wire, Heated<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$49.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/oxygen-sensor\/drivewire\/repn960915\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/set-repn960335ss-2\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/set-repn960335ss-2_1\" alt=\"Evan Fischer&reg; &ndash; Front and Rear Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/set-repn960335ss-2_1\" alt=\"Evan Fischer&reg; &ndash; Front and Rear Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/set-repn960335ss-2\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Evan Fischer&reg; &ndash; Front and Rear Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)\">Evan Fischer&reg; &ndash; Front and Rear Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$299.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/set-repn960335ss-2\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n            <\/ul>\n<\/div>\n\n\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\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Inside every heated oxygen sensor (HO2S) runs a heater wire that helps get the device up to operating temperature quickly&#8230;. <a href=\"https:\/\/www.carparts.com\/blog\/p0038-heated-oxygen-sensor-heater-control-circuit-high-bank-1-sensor-2\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":15896,"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":[1190],"ppma_author":[2607,2985],"class_list":{"0":"post-15876","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-oxygen-sensor-2","9":"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>P0038: Heated Oxygen Sensor Heater Control Circuit High (Bank 1, Sensor 2)\ufeff - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"The P0038 code warns of high voltage in the heater wire of the bank 1, oxygen sensor 2. Read on to learn more about 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\/p0038-heated-oxygen-sensor-heater-control-circuit-high-bank-1-sensor-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0038: Heated Oxygen Sensor Heater Control Circuit High (Bank 1, Sensor 2)\ufeff - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"The P0038 code warns of high voltage in the heater wire of the bank 1, oxygen sensor 2. 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