{"id":75403,"date":"2022-10-18T03:38:12","date_gmt":"2022-10-18T10:38:12","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=75403"},"modified":"2023-09-04T20:46:02","modified_gmt":"2023-09-05T03:46:02","slug":"p2191-code-system-too-lean-at-higher-load-bank-1","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/","title":{"rendered":"P2191 Code: System Too Lean At Higher Load 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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_577173-1e > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_577173-1e > .kt-inside-inner-col,.kadence-column_577173-1e > .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-column_577173-1e > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_577173-1e > .kt-inside-inner-col{flex-direction:column;}.kadence-column_577173-1e > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_577173-1e > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_577173-1e{position:relative;}@media all and (max-width: 1024px){.kadence-column_577173-1e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_577173-1e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_577173-1e qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-5263da  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-dbf1bd\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_9c1c6b-2d, .wp-block-kadence-advancedheading.kt-adv-heading_9c1c6b-2d[data-kb-block=\"kb-adv-heading_9c1c6b-2d\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_9c1c6b-2d mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_9c1c6b-2d[data-kb-block=\"kb-adv-heading_9c1c6b-2d\"] 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-heading_9c1c6b-2d img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_9c1c6b-2d[data-kb-block=\"kb-adv-heading_9c1c6b-2d\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_9c1c6b-2d summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_9c1c6b-2d\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The P2191 code stands for &ldquo;Manifold Absolute Pressure\/Mass Air Flow &ndash; Throttle Position.&rdquo; It&rsquo;s logged once the PCM detects a lean mixture in the system.<\/li><li>Some issues that can trigger code P2191 include a bad fuel injector, a weak fuel pump, and a malfunctioning mass airflow sensor.<\/li><li>An illuminated check engine light, decreased fuel economy, poor engine performance, and engine misfires are some of this trouble code&rsquo;s symptoms.<\/li><\/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\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen sensor\">oxygen sensor<\/a> is a device that monitors oxygen content in the exhaust stream to help regulate the air-fuel ratio in the engine. The powertrain control module (PCM) uses information from the oxygen sensor to determine how much fuel should be injected into the engine. If the PCM detects a lean mixture (too much air versus fuel) in the system, the vehicle&rsquo;s computer will record a P2191 code on a scan tool.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2191 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code (DTC) P2191 stands for &ldquo;Manifold Absolute Pressure\/Mass Air Flow &ndash; Throttle Position.&rdquo; This is a generic powertrain code that applies to select vehicles with OBD II.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/oxygen-sensor-of-a-car-1024x708.jpg\" alt=\"oxygen sensor of a car\" class=\"wp-image-75835\" width=\"1024\" height=\"708\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/oxygen-sensor-of-a-car-1024x708.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/oxygen-sensor-of-a-car-300x207.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/oxygen-sensor-of-a-car-768x531.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/oxygen-sensor-of-a-car-150x104.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/oxygen-sensor-of-a-car.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>If the PCM detects a lean mixture (too much air versus fuel) in the system, the vehicle&rsquo;s computer will record a P2191 code on a scan tool.<\/figcaption><\/figure>\n\n\n\n<p>The oxygen sensor is either installed in the <a href=\"https:\/\/www.carparts.com\/exhaust-manifold\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"exhaust manifold\">exhaust manifold<\/a> or located downstream in the <a href=\"https:\/\/www.carparts.com\/exhaust-pipe\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"exhaust pipe\">exhaust pipe<\/a>. A sensor that&rsquo;s located near the outlet of the manifold is responsible for detecting the air-fuel mixture for all cylinders in the <a href=\"https:\/\/www.carparts.com\/exhaust-system\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"exhaust system\">exhaust system<\/a>. Some vehicles can have as many as four oxygen sensors monitoring the oxygen content throughout the exhaust system. This ensures the engine doesn&rsquo;t run rich or lean. A rich mixture means that there&rsquo;s too much fuel in the <a href=\"https:\/\/www.carparts.com\/blog\/what-is-a-good-air-fuel-ratio-chart-included\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"air-fuel mixture\">air-fuel mixture<\/a> while a lean mixture means there&rsquo;s too much air in the air-fuel mixture. If the engine&rsquo;s air-fuel ratio is rich or lean, the vehicle might exhibit performance issues or even break down due to faulty parts.<\/p>\n\n\n\n<p>The vehicle&rsquo;s computer uses the oxygen sensor to determine how much fuel is needed. The PCM will set a P2191 code if the PCM detects a lean mixture in Bank 1. Bank 1 refers to a bank of cylinders that contain cylinder number 1. The location of this cylinder depends on your vehicle&rsquo;s make and model.<\/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><strong><em>Note:<\/em><\/strong><em> The definition of code P2191 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 P2191 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/the-top-6-signs-of-bad-fuel-injectors\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty fuel injector(s)\">Faulty fuel injector(s)<\/a><\/li><li>Weak fuel pump<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/bad-o2-sensor-symptoms-causes-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty oxygen sensor\">Faulty oxygen sensor<\/a><\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/symptoms-of-failing-mass-air-flow-sensor\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty mass air flow sensor\">Faulty mass air flow sensor<\/a><\/li><li>Faulty PCM or software in need of an update<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P2191 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><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><li>Engine lacks power<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/cylinder-misfire-causes-plus-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Engine misfires\">Engine misfires<\/a><\/li><li>Reduced fuel efficiency<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/automotive-fuel-injector-1024x660.jpg\" alt=\"hand showing an automotive fuel injector\" class=\"wp-image-75836\" width=\"1024\" height=\"660\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/automotive-fuel-injector-1024x660.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/automotive-fuel-injector-300x193.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/automotive-fuel-injector-768x495.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/automotive-fuel-injector-150x97.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/automotive-fuel-injector.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Issues with the fuel injector(s) can also trigger the P2191 code.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2191 Code<\/h2>\n\n\n\n<p>There might be more than one DTC stored in your PCM. Make sure to check the scan tool thoroughly when diagnosing your vehicle, so you don&rsquo;t miss anything. Follow the recommended diagnostic steps for your vehicle as indicated in the <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manual\">repair manual<\/a>. What might work to resolve a P2191 code in a <a href=\"https:\/\/www.carparts.com\/blog\/kia-soul-reliability-and-common-problems\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Kia Soul\">Kia Soul<\/a> might not work for a <a href=\"https:\/\/www.carparts.com\/blog\/hyundai-accent-reliability-and-common-problems\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Hyundai Accent\">Hyundai Accent<\/a>.<\/p>\n\n\n\n<p>However, we strongly encourage you to take your vehicle to an expert if you lack the skills and knowledge to perform a diagnosis with a scan tool.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P2191 Code<\/h2>\n\n\n\n<p>There&rsquo;s no magic bullet for troubleshooting DTCs. You&rsquo;ll have to find the underlying causes of a P2161 code to figure out what repairs or replacements are needed. Lucky for you, there are numerous <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=\"resources online\">resources online<\/a> for <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"trouble codes\">trouble codes<\/a> like this one. We suggest searching for technical service bulletins published by your vehicle&rsquo;s manufacturer to save time on research. Some other helpful resources include Chilton repair manuals and an ALLDATA single-vehicle subscription. These resources can help you identify your vehicle&rsquo;s parts and familiarize yourself with its potential problems.<\/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 oxygen sensor is a device that monitors oxygen content in the exhaust stream to help regulate the air-fuel ratio&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":75672,"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":[2607,2855],"class_list":{"0":"post-75403","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>P2191 Code: System Too Lean At Higher Load Bank 1 - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Want to know how to clear a P2191 diagnostic trouble code in your car? Read this article and learn the basics.\" \/>\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\/p2191-code-system-too-lean-at-higher-load-bank-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2191 Code: System Too Lean At Higher Load Bank 1 - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Want to know how to clear a P2191 diagnostic trouble code in your car? Read this article and learn the basics.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/\" \/>\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:published_time\" content=\"2022-10-18T10:38:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-05T03:46:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/obd-scan-tool-image.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=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\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\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"William Guzenski\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"William \u201cBill\u201d Guzenski has produced hundreds of how-to videos for the automotive community. He\u2019s an ASE Certified Master Automobile Technician, and is affiliated with the Specialty Equipment Market Association (SEMA). He loves attending race events and car shows throughout the country, as well as traveling in his 40-foot motorhome, exploring abandoned mines and ghost towns.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/williamguzenski\\\/\",\"sameAs\":\"\"}],\"headline\":\"P2191 Code: System Too Lean At Higher Load Bank 1\",\"datePublished\":\"2022-10-18T10:38:12+00:00\",\"dateModified\":\"2023-09-05T03:46:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/\"},\"wordCount\":679,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/obd-scan-tool-image.jpg\",\"keywords\":[\"oxygen-sensor\"],\"articleSection\":[\"OBD-II Trouble Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/\",\"name\":\"P2191 Code: System Too Lean At Higher Load Bank 1 - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/obd-scan-tool-image.jpg\",\"datePublished\":\"2022-10-18T10:38:12+00:00\",\"dateModified\":\"2023-09-05T03:46:02+00:00\",\"description\":\"Want to know how to clear a P2191 diagnostic trouble code in your car? Read this article and learn the basics.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/obd-scan-tool-image.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/10\\\/obd-scan-tool-image.jpg\",\"width\":1500,\"height\":1000,\"caption\":\"obd scan tool image\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p2191-code-system-too-lean-at-higher-load-bank-1\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"P2191 Code: System Too Lean At Higher Load Bank 1 - In The Garage with CarParts.com","description":"Want to know how to clear a P2191 diagnostic trouble code in your car? Read this article and learn the basics.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/","og_locale":"en_US","og_type":"article","og_title":"P2191 Code: System Too Lean At Higher Load Bank 1 - In The Garage with CarParts.com","og_description":"Want to know how to clear a P2191 diagnostic trouble code in your car? Read this article and learn the basics.","og_url":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2022-10-18T10:38:12+00:00","article_modified_time":"2023-09-05T03:46:02+00:00","og_image":[{"width":1500,"height":1000,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/obd-scan-tool-image.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/"},"author":[{"@type":"Person","$id":"4","name":"CarParts.com Research Team","jobTitle":"Expert Automotive Writer","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","sameAs":"https:\/\/www.facebook.com\/carpartscom, https:\/\/twitter.com\/CarPartscom, https:\/\/www.youtube.com\/@CarPartscomOfficial\/, https:\/\/www.instagram.com\/carpartscom\/"},{"@type":"Person","$id":"4","name":"William Guzenski","jobTitle":"ASE Master Automobile Technician","description":"William \u201cBill\u201d Guzenski has produced hundreds of how-to videos for the automotive community. He\u2019s an ASE Certified Master Automobile Technician, and is affiliated with the Specialty Equipment Market Association (SEMA). He loves attending race events and car shows throughout the country, as well as traveling in his 40-foot motorhome, exploring abandoned mines and ghost towns.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/williamguzenski\/","sameAs":""}],"headline":"P2191 Code: System Too Lean At Higher Load Bank 1","datePublished":"2022-10-18T10:38:12+00:00","dateModified":"2023-09-05T03:46:02+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/"},"wordCount":679,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/obd-scan-tool-image.jpg","keywords":["oxygen-sensor"],"articleSection":["OBD-II Trouble Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/","url":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/","name":"P2191 Code: System Too Lean At Higher Load Bank 1 - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/obd-scan-tool-image.jpg","datePublished":"2022-10-18T10:38:12+00:00","dateModified":"2023-09-05T03:46:02+00:00","description":"Want to know how to clear a P2191 diagnostic trouble code in your car? Read this article and learn the basics.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/obd-scan-tool-image.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/obd-scan-tool-image.jpg","width":1500,"height":1000,"caption":"obd scan tool image"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/obd-scan-tool-image.jpg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/obd-scan-tool-image.jpg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/p2191-code-system-too-lean-at-higher-load-bank-1\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":2855,"user_id":1645,"is_guest":0,"slug":"williamguzenski","display_name":"William Guzenski, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/william-bill-guzenski-carparts-ase-certified-technician.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/william-bill-guzenski-carparts-ase-certified-technician.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/75403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=75403"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/75403\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/75672"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=75403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=75403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=75403"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=75403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}