{"id":15693,"date":"2021-07-16T02:00:00","date_gmt":"2021-07-16T09:00:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=15693"},"modified":"2026-02-09T23:08:27","modified_gmt":"2026-02-10T07:08:27","slug":"p2097-code-post-catalyst-fuel-trim-system-too-rich-bank-1","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2097-code-post-catalyst-fuel-trim-system-too-rich-bank-1\/","title":{"rendered":"P2097 Code: Post Catalyst Fuel Trim System Too Rich 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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column15693_c4ac54-78 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column15693_c4ac54-78 > .kt-inside-inner-col,.kadence-column15693_c4ac54-78 > .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-column15693_c4ac54-78 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column15693_c4ac54-78 > .kt-inside-inner-col{flex-direction:column;}.kadence-column15693_c4ac54-78 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column15693_c4ac54-78 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column15693_c4ac54-78{position:relative;}@media all and (max-width: 1024px){.kadence-column15693_c4ac54-78 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column15693_c4ac54-78 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column15693_c4ac54-78 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-fb6302  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-d386a0\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading15693_5f68a3-c8, .wp-block-kadence-advancedheading.kt-adv-heading15693_5f68a3-c8[data-kb-block=\"kb-adv-heading15693_5f68a3-c8\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading15693_5f68a3-c8 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading15693_5f68a3-c8[data-kb-block=\"kb-adv-heading15693_5f68a3-c8\"] 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-heading15693_5f68a3-c8 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading15693_5f68a3-c8[data-kb-block=\"kb-adv-heading15693_5f68a3-c8\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading15693_5f68a3-c8 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading15693_5f68a3-c8\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DTC P2097 stands for &ldquo;Post Catalyst Fuel Trim System Too Rich Bank 1&rdquo;.<\/li>\n\n\n\n<li>This code is triggered when the downstream bank 1 oxygen sensor registers a rich condition.<\/li>\n\n\n\n<li>The most common symptoms of a P2097 include a lit check engine light, poor engine performance, and a reduced fuel economy.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>To stay in top condition, an engine must maintain the <a href=\"https:\/\/www.carparts.com\/blog\/what-is-a-good-air-fuel-ratio-chart-included\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"ideal air\/fuel ratio\">ideal air\/fuel ratio<\/a>. Oxygen sensors help ensure this by keeping the powertrain control module (PCM) updated on oxygen levels in the exhaust stream. This allows the PCM to adjust the air\/fuel ratio whenever necessary.<\/p>\n\n\n\n<p>The ratio is considered rich if there is too much fuel, while it is considered lean if there is too much oxygen. If your check engine light is illuminated and a P2907 code registers when you connect a scan tool to your car&rsquo;s OBD port, you are dealing with the former issue. Learn what it means, what could have caused it, common symptoms, and more.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2097 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code (DTC) P2097 stands for Post Catalyst Fuel Trim System Too Rich Bank 1. It is triggered when the downstream bank 1 oxygen sensor registers a rich condition.<\/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>To learn about the difference between the upstream and downstream oxygen sensors, read our explanation <a href=\"https:\/\/www.carparts.com\/blog\/p0420-code-catalyst-system-efficiency-below-threshold-bank-1\/#What_is_a_Catalyst\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"here\">here<\/a>.<\/p>\n\n\n\n<p>For an advanced understanding of fuel trim, you can read our detailed, technical explanation <a href=\"#A_Closer_Look_at_Fuel_Trim\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"here\">here<\/a>.<\/p>\n\n\n\n<p>If you wish to know the most common causes of code P2097, read the next section.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P2097 Code?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Rich Running Condition <\/h3>\n\n\n\n<p>A rich running engine may trigger the P2097 code. If you are planning to replace the oxygen sensor, make sure to check for issues that could contribute to a rich running condition first.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Faulty Oxygen Sensor<\/h3>\n\n\n\n<p>If no exhaust leaks are found, a faulty upstream oxygen sensor is the most likely culprit for this trouble code. To rule this out, check the upstream oxygen sensor and circuit before diagnosing the downstream oxygen sensor.<\/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\/catalytic-converter-1024x683.jpeg\" alt=\"a car's catalytic converter\" class=\"wp-image-15712\" style=\"width:1024px;height:683px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-1024x683.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-300x200.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-768x512.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-600x400.jpeg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter-150x100.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/catalytic-converter.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Upstream oxygen sensors provide data regarding the actual air-fuel ratio while downstream oxygen sensors monitor the efficiency of the catalytic converter.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Damaged Wiring or Poor Connections in the Oxygen Sensor Circuit<\/h3>\n\n\n\n<p>Check the oxygen sensor&rsquo;s connectors for moisture, chaffing, breaks, burns, and damaged pins. This code may also be set if the O2 sensor wiring is disconnected, open, or short to ground.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Malfunctioning PCM<\/h3>\n\n\n\n<p>In some cases, the error code P0297 may be erroneously set because of a PCM in need of a software update.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Concurrent Trouble Codes<\/h3>\n\n\n\n<p>The P2097 code could be triggered due to other concurrent trouble codes that may be causing the vehicle to run in a rich condition.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P2097 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=\"Check Engine Light\">Check Engine Light<\/a> is illuminated<\/li>\n\n\n\n<li>Poor engine performance<\/li>\n\n\n\n<li>Reduced fuel economy<\/li>\n\n\n\n<li>Poor, erratic, or rough idling<\/li>\n\n\n\n<li>Engine may stumble or hesitate upon acceleration<\/li>\n\n\n\n<li>Engine is hard starting while hot<\/li>\n\n\n\n<li>In some cases, you may notice a fuel odor<\/li>\n\n\n\n<li>In extreme cases, the vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/tail-pipe\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"tailpipe\">tailpipe<\/a> may emit black smoke<\/li>\n\n\n\n<li>Related DTCs may be registered <\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2097 Code<\/h2>\n\n\n\n<p>Identifying the underlying cause of the P2097 code can be challenging if you don&rsquo;t have extensive automotive knowledge. In most cases, it&rsquo;s best to seek the expert advice of a mechanic for proper diagnosis and repair. However, if you are confident with your repair know-how, you can try to determine what triggered the issue. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P2097 Code<\/h2>\n\n\n\n<p>Like other <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD-II\">OBD-II<\/a> codes, the repair process for the error code P2097 may differ based on the vehicle. Hence, once you&rsquo;ve diagnosed the issue, make sure to research a solution that&rsquo;s specific not only to what triggered the code but also to your car&rsquo;s year, make, and model. Reading <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"online auto repair resources and guides\">online auto repair resources and guides<\/a> can help you find the correct fix. You can also get an ALLDATA single-vehicle subscription, which could help you pull off this repair job and other future repairs you may have to don on your vehicle.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"764\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/engine-control-module-1024x764.jpg\" alt=\"engine control module\" class=\"wp-image-41900\" style=\"width:1024px;height:764px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/engine-control-module-1024x764.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/engine-control-module-300x224.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/engine-control-module-768x573.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/engine-control-module-150x112.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/07\/engine-control-module.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Short fuel trim is the immediate response of the ECM\/PCM to rich and lean conditions reported by the O2 sensor.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">A Closer Look at Fuel Trim<\/h2>\n\n\n\n<p><strong>Fuel trim<\/strong> isn&rsquo;t something that can be read with an oscilloscope or meter &ndash; it must be reported to a scan tool by way of the datastream. <strong>Short fuel trim<\/strong> is the immediate response of the ECM\/PCM to rich and lean conditions reported by the O2 sensor (primarily the upstream sensor). Short fuel trim should remain near zero if everything is working right, but it dances just above and below the perfect mix to maintain the balance.<\/p>\n\n\n\n<p>If the O2 reads an oxygen level in the exhaust that is too low (rich mixture), the fuel trim readings will correct to the MINUS side of the zero, and if they move too far in that direction, <strong>long fuel trim<\/strong> (short fuel trim&rsquo;s &lsquo;big brother&rsquo;) begins making coarse adaptive adjustments to the total fuel trim to allow <strong>short fuel trim<\/strong> to return to near zero. If the O2 indicates too much oxygen in the exhaust, the opposite is true &ndash; the fuel trim readings will correct to the PLUS (positive) side &ndash; above zero.<\/p>\n\n\n\n<p>It&rsquo;s a delicate balancing act to keep the mixture as near as possible to the 14.7 mix of air and fuel (by weight). Thus if you&rsquo;re looking at data stream numbers and you see long fuel trim numbers in double digits on either side of zero but short fuel trim is near zero, you know there is a fuel mixture issue due to a vacuum leak or perhaps a saturated EVAP canister dumping excess HC into the intake during purge. There are other issues that can cause rich or lean conditions.<\/p>\n\n\n\n<p>During the course of watching the upstream O2 sensor, the ECM\/PCM also watches the downstream sensor for indications that the mixture is too rich &ndash; and if the upstream O2 sensor on that bank becomes unreliable, the ECM\/PCM will actually begin to adjust fuel trims based on rear O2 sensor input.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get New Oxygen Sensors for Your Vehicle<\/h2>\n\n\n\n<p>Driving with a P2097 code due to faulty oxygen sensors could lead to various head-scratching issues, such as stalls, poor fuel economy, and even engine damage. All these require pricey repairs, so why not save money and get replacement sensors right away?<\/p>\n\n\n\n<p>For high-quality oxygen sensors at unbeatable prices, look no further than <a href=\"https:\/\/carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a>. We source our products from the most trusted manufacturers in the industry, so the parts you order are sure to last. You can also count on our fast and reliable shipping, as we have strategically located distribution centers across the country.<\/p>\n\n\n\n<p>We value your customer experience more than anything, so don&rsquo;t hesitate to contact our round-the-clock customer service if you need help with anything. On top of that, we also accept returns within 60 days of purchase with a money-back guarantee!<\/p>\n\n\n\n<p>So don&rsquo;t wait until your vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensors\">oxygen sensors<\/a> fail. Shop for high-quality replacements at CarParts.com and have your order delivered to your doorsteps in a matter of days!<\/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\/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\">\n<strong>Oxygen Sensor<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/tail-pipe\" target=\"_blank\" aria-label=\"Tail Pipe\" 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\/wk55155_1\">\n<strong>Tail Pipe<\/strong>\n<\/a>\n\n<a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" aria-label=\"Engine Control Module\" 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\/a1790044v_1\">\n<strong>Engine Control Module<\/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\/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\/tail-pipe\/evan-fischer\/rt96310001\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/rt96310001_1\" alt=\"Evan Fischer&reg; &ndash; Tail Pipe, Natural, Stainless Steel\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/rt96310001_1\" alt=\"Evan Fischer&reg; &ndash; Tail Pipe, Natural, Stainless Steel\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/tail-pipe\/evan-fischer\/rt96310001\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Evan Fischer&reg; &ndash; Tail Pipe, Natural, Stainless Steel\">Evan Fischer&reg; &ndash; Tail Pipe, Natural, Stainless Steel<\/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.svg\" alt=\"4 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$42.99<\/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\/tail-pipe\/evan-fischer\/rt96310001\" 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\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>To stay in top condition, an engine must maintain the ideal air\/fuel ratio. Oxygen sensors help ensure this by keeping&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2097-code-post-catalyst-fuel-trim-system-too-rich-bank-1\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":15714,"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":[504,162],"ppma_author":[2607,2985],"class_list":{"0":"post-15693","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-engine-control-module","9":"tag-oxygen-sensor","10":"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>P2097 Code: Post Catalyst Fuel Trim System Too Rich Bank 1 - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what the P2097 code means, its possible causes, and common symptoms. Learn about the proper approach for diagnosing and resolving this 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\/p2097-code-post-catalyst-fuel-trim-system-too-rich-bank-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2097 Code: Post Catalyst Fuel Trim System Too Rich Bank 1 - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what the P2097 code means, its possible causes, and common symptoms. 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