{"id":66985,"date":"2022-02-28T00:25:20","date_gmt":"2022-02-28T08:25:20","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=66985"},"modified":"2026-02-17T23:39:36","modified_gmt":"2026-02-18T07:39:36","slug":"p015d-o2-sensor-delayed-response-lean-to-rich-bank-2-sensor-1","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p015d-o2-sensor-delayed-response-lean-to-rich-bank-2-sensor-1\/","title":{"rendered":"P015D: O2 Sensor Delayed Response &#8211; Lean to Rich (Bank 2, Sensor 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-column66985_8caf1d-44 > .kt-inside-inner-col,.kadence-column66985_8caf1d-44 > .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-column66985_8caf1d-44 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column66985_8caf1d-44 > .kt-inside-inner-col{flex-direction:column;}.kadence-column66985_8caf1d-44 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column66985_8caf1d-44 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column66985_8caf1d-44{position:relative;}@media all and (max-width: 1024px){.kadence-column66985_8caf1d-44 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column66985_8caf1d-44 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column66985_8caf1d-44 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-1a4a17  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-bd63cd\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading66985_0ef6f9-2b, .wp-block-kadence-advancedheading.kt-adv-heading66985_0ef6f9-2b[data-kb-block=\"kb-adv-heading66985_0ef6f9-2b\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading66985_0ef6f9-2b mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading66985_0ef6f9-2b[data-kb-block=\"kb-adv-heading66985_0ef6f9-2b\"] 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-heading66985_0ef6f9-2b img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading66985_0ef6f9-2b[data-kb-block=\"kb-adv-heading66985_0ef6f9-2b\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading66985_0ef6f9-2b summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading66985_0ef6f9-2b\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The P015D code means &ldquo;O2 sensor delayed response &ndash; lean to rich.&rdquo; The code triggers when the vehicle&rsquo;s oxygen sensor isn&rsquo;t sending back information that the power control module (PCM) expects.<\/li>\n\n\n\n<li>This code can be triggered by an exhaust leak, oxygen sensor failure, faulty air filter, faulty air-fuel sensors, or a faulty PCM.<\/li>\n\n\n\n<li>The issues causing this code can show symptoms like decreased fuel efficiency, cause reduced engine performance, and activate the check engine light. Other DTCs related to the oxygen sensor can also be triggered.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>If your vehicle has engine-related issues, then a quick way to identify the problem is with an OBD-II scanner. If a P015D diagnostic trouble code (DTC) appears in your scanner, then this article will help you know more about its meaning, causes, and symptoms.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P015D Code Mean?<\/h2>\n\n\n\n<p>The P015D code means &ldquo;O2 sensor delayed response &ndash; lean to rich.&rdquo; The P015D code triggers when the vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensor\">oxygen sensor<\/a> isn&rsquo;t sending back information that the PCM regularly expects.<\/p>\n\n\n\n<p>The powertrain control module (PCM) expects the oxygen sensor or air-fuel sensor to send back information at predetermined times. The PCM needs information from the oxygen sensors to be able to run the engine efficiently. If the oxygen sensor develops issues, then the PCM won&rsquo;t be able to determine the ideal values for variables like air-fuel ratio and ignition timing.<\/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\/2022\/02\/oxygen-sensor-bank-2-sensor-1-1024x683.jpg\" alt=\"oxygen sensor bank 2 sensor 1\" class=\"wp-image-66987\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/oxygen-sensor-bank-2-sensor-1-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/oxygen-sensor-bank-2-sensor-1-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/oxygen-sensor-bank-2-sensor-1-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/oxygen-sensor-bank-2-sensor-1-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/oxygen-sensor-bank-2-sensor-1-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/oxygen-sensor-bank-2-sensor-1.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The P015D code is triggered when the vehicle&rsquo;s oxygen sensor isn&rsquo;t sending back information that the PCM regularly expects.<\/figcaption><\/figure>\n\n\n\n<p>This particular code corresponds to oxygen sensor 1, which analyzes the exhaust gases from the engine bank 2.<\/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><em><strong>Note: <\/strong>The definition of code P015D 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 Possible Causes of the P015D Code?<\/h2>\n\n\n\n<p>Despite being defined as an oxygen sensor issue, there are actually several issues that can cause the P015D code. These issues include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exhaust leak<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/bad-o2-sensor-symptoms-causes-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Oxygen sensor failure\">Oxygen sensor failure<\/a><\/li>\n\n\n\n<li>Faulty air filter<\/li>\n\n\n\n<li>Faulty air-fuel sensors<\/li>\n\n\n\n<li>PCM failure<\/li>\n\n\n\n<li>PCM needs a software update<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Wiring\">Wiring<\/a> issues<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/car-wirings-1024x576.jpg\" alt=\"car wirings\" class=\"wp-image-66988\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/car-wirings-1024x576.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/car-wirings-300x169.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/car-wirings-768x432.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/car-wirings-150x84.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/car-wirings.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Wiring issues can trigger the P015D code.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P015D Code?<\/h2>\n\n\n\n<p>Here are the most common symptoms of the P015D code:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Decreased fuel efficiency<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/what-triggers-reduced-engine-power\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Reduced engine performance\">Reduced engine performance<\/a><\/li>\n\n\n\n<li>Other DTCs related to the oxygen sensor<\/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 P015D Code<\/h2>\n\n\n\n<p>Identifying the main cause of the P015D code can be difficult because there are several components that you need to check. Components like the oxygen sensor and the PCM might require special knowledge or tools to be able to access and test them. If you want to properly diagnose the P015D code in your vehicle, then the best course of action would be to consult a professional.<\/p>\n\n\n\n<p>If you want to learn more about the issue and the diagnostic process, then you should check out this video:<\/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=\"(GMC Yukon) Diagnosing a P015D\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/3F2gOaxxsjE?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 P015D Code<\/h2>\n\n\n\n<p>Attempting to fix a P015D code can be a frustrating and confusing task if you&rsquo;re not equipped with the right tools and information. At the same time, there isn&rsquo;t an easy, one-size-fits-all solution for any <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD-II trouble code\">OBD-II trouble code<\/a>. If you&rsquo;re not confident with your DIY skills yet, it might be best to leave the job to professionals.<\/p>\n\n\n\n<p>But if you think you have the automotive know-how to do the job yourself, make sure you have <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"consulted your vehicle&rsquo;s manual\">consulted your vehicle&rsquo;s manual<\/a> before attempting any fixes. Remember that different vehicle makes may have their own specific repair instructions for their vehicle models, so make sure to consult your vehicle&rsquo;s repair manual.<\/p>\n\n\n\n<p>You can also consult <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=\"online repair resources and manuals\">online repair resources and manuals<\/a>, but an ALLDATA subscription might be better because it provides detailed factory repair information.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other Notes About P015D<\/h2>\n\n\n\n<p>Other trouble codes that are similar to the P015D code include <a href=\"https:\/\/www.carparts.com\/blog\/p013e-code-o2-sensor-delayed-response-rich-to-lean-bank-1-sensor-2\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P013E\">P013E<\/a>, P013F, P014A, P014B, P015A, <a href=\"https:\/\/www.carparts.com\/blog\/p015b-code-o2-sensor-delayed-response-lean-to-rich-bank-1-sensor-1\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P015B\">P015B<\/a>, and P015C.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get a Premium Oxygen Sensor for Your Vehicle&nbsp;<\/h2>\n\n\n\n<p>One of the ways to clear a P015D code is to replace a faulty <a href=\"https:\/\/www.carparts.com\/search?q=oxygen_sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensor\">oxygen sensor<\/a>. When it&rsquo;s time to shop for affordable yet high-quality parts, <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a> has you covered.<\/p>\n\n\n\n<p>Our website carries a wide selection of replacement oxygen sensors sourced from some of the top brands in the industry. All products in our catalog are vetted by our team of industry experts and undergo strict quality checks to ensure their performance and reliability.<\/p>\n\n\n\n<p>To start shopping, simply go to our website or download our mobile app. Our easy-to-use vehicle selector will help you check for fitment. Browse our wide selection of aftermarket oxygen sensors and take advantage of our unbeatable prices.<\/p>\n\n\n\n<p>Shopping for replacement parts has never been this easy. Check out our selection, and order today!<\/p>\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\/engine-control-module\/a1-cardone\/a1777747\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/a1777747_1\" alt=\"A1 Cardone&reg; &ndash; 77-7747 Reman Series Engine Control Module &ndash; Direct Fit, Sold individually\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/a1777747_1\" alt=\"A1 Cardone&reg; &ndash; 77-7747 Reman Series Engine Control Module &ndash; Direct Fit, Sold individually\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/engine-control-module\/a1-cardone\/a1777747\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"A1 Cardone&reg; &ndash; 77-7747 Reman Series Engine Control Module &ndash; Direct Fit, Sold individually\">A1 Cardone&reg; &ndash; 77-7747 Reman Series Engine Control Module &ndash; Direct Fit, Sold individually<\/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\">$95.49<\/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\/engine-control-module\/a1-cardone\/a1777747\" 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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>If your vehicle has engine-related issues, then a quick way to identify the problem is with an OBD-II scanner. If&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p015d-o2-sensor-delayed-response-lean-to-rich-bank-2-sensor-1\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":66986,"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":[1190],"ppma_author":[2607,3742],"class_list":{"0":"post-66985","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 v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P015D: O2 Sensor Delayed Response - Lean to Rich (Bank 2, Sensor 1) - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Want to learn about the P015D diagnostic trouble code? Read about its definition, possible causes, and common symptoms in this article.\" \/>\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\/p015d-o2-sensor-delayed-response-lean-to-rich-bank-2-sensor-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P015D: O2 Sensor Delayed Response - Lean to Rich (Bank 2, Sensor 1) - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Want to learn about the P015D diagnostic trouble code? 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