{"id":79600,"date":"2025-06-09T14:24:46","date_gmt":"2025-06-09T19:24:46","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79600"},"modified":"2025-09-15T22:17:48","modified_gmt":"2025-09-16T03:17:48","slug":"p2248-obd2-o2-sensor-reference-voltage-performance","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance","title":{"rendered":"P2248 OBD2: O2 Sensor Reference Voltage Performance (Bank 2 Sensor 1)"},"content":{"rendered":"<p>OBD-II Code P2248 is defined as an Oxygen Sensor Reference Voltage Performance issue. This code is significant in understanding the performance and functionality of your vehicle&#8217;s oxygen sensor.<\/p>\n<h2>What Does the P2248 Code Mean?<\/h2>\n<p>The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the combustion process of the engine. This information is critical for the Powertrain Control Module (PCM) to maintain efficient fuel economy. When the PCM detects a failure of the sensor or the information received from the sensor, it will set code P2248.<\/p>\n<h2>What Causes the P2248 Code?<\/h2>\n<p>Several factors can trigger the P2248 code, including:<\/p>\n<ul>\n<li>Exhaust leak<\/li>\n<li>Oxygen sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issue<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2248 Code?<\/h2>\n<p>Common symptoms associated with the P2248 code include:<\/p>\n<ul>\n<li>Decreased engine performance<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P2248 Code?<\/h2>\n<p>The P2248 code is classified as a moderate severity issue. While it might not threaten the vehicle&#8217;s safety or functionality immediately, it is essential to get it diagnosed within a reasonable time frame to maintain optimal vehicle performance.<\/p>\n<h2>How to Diagnose the P2248 Code<\/h2>\n<p>For a proper diagnosis, it is recommended to visit a certified shop that has the necessary equipment, tools, and expertise. Technicians will typically perform the following steps:<\/p>\n<ul>\n<li>Check for any additional trouble codes.<\/li>\n<li>Inspect the oxygen sensor and wiring for any visible damage.<\/li>\n<li>Test the voltage output of the oxygen sensor.<\/li>\n<li>Examine the exhaust system for leaks.<\/li>\n<\/ul>\n<h2>Common Repairs for the P2248 Code<\/h2>\n<p>Repairs for the P2248 code often involve:<\/p>\n<ul>\n<li>Oxygen sensor replacement<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2248 Code?<\/h2>\n<p>The cost of fixing the P2248 code can vary widely based on the region and the specific cause of the code. Generally, you might expect to pay between $100 to $300 for diagnostics and repairs, with the cost of parts being a significant factor if an oxygen sensor replacement is needed.<\/p>\n<h2>Can I Fix the P2248 Code Myself?<\/h2>\n<p>While some vehicle owners with a mechanical background may attempt to diagnose and fix the P2248 code themselves, it is often advisable to consult a professional mechanic. Proper diagnosis requires specific tools and expertise to ensure that the underlying issue is accurately identified and repaired.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>OBD-II Code P2248 is defined as an Oxygen Sensor Reference Voltage Performance issue. This code is significant in understanding the performance and functionality of your vehicle&#8217;s oxygen sensor. What Does the P2248 Code Mean? The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the combustion &hellip;<\/p>\n","protected":false},"author":26,"featured_media":88344,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_uag_custom_page_level_css":"","footnotes":""},"categories":[11987],"tags":[],"class_list":["post-79600","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-p-obd2-codes-powertrain"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.6 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P2248 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2248 code, what causes oxygen sensor reference voltage performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.\" \/>\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.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2248 OBD2: O2 Sensor Reference Voltage Performance (Bank 2 Sensor 1)\" \/>\n<meta property=\"og:description\" content=\"OBD-II Code P2248 is defined as an Oxygen Sensor Reference Voltage Performance issue. This code is significant in understanding the performance and\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance\" \/>\n<meta property=\"og:site_name\" content=\"eManualOnline Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/EmanualOnline\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/jee514\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-09T19:24:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-16T03:17:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"JC Landry\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:site\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"JC Landry\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P2248 OBD2: O2 Sensor Reference Voltage Performance (Bank 2 Sensor 1)\",\"datePublished\":\"2025-06-09T19:24:46+00:00\",\"dateModified\":\"2025-09-16T03:17:48+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance\"},\"wordCount\":387,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/p2248-obd2-o2-sensor-reference-voltage-performance.png\",\"articleSection\":[\"P Codes - OBD2 Powertrain Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance\",\"name\":\"OBD2 Code P2248 \u2013 Causes, Symptoms, and Repairs\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/p2248-obd2-o2-sensor-reference-voltage-performance.png\",\"datePublished\":\"2025-06-09T19:24:46+00:00\",\"dateModified\":\"2025-09-16T03:17:48+00:00\",\"description\":\"Learn all about the P2248 code, what causes oxygen sensor reference voltage performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance#primaryimage\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/p2248-obd2-o2-sensor-reference-voltage-performance.png\",\"contentUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/p2248-obd2-o2-sensor-reference-voltage-performance.png\",\"width\":1200,\"height\":675,\"caption\":\"P2248 OBD2: O2 Sensor Reference Voltage Performance\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2248-obd2-o2-sensor-reference-voltage-performance#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"P2248 OBD2: O2 Sensor Reference Voltage Performance (Bank 2 Sensor 1)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\",\"name\":\"eManualOnline Blog\",\"description\":\"Free Tips on Car Service, Repair and General Stuff\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\",\"name\":\"eManualOnline\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/cdm.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/04\\\/LOGO-NEW.png\",\"contentUrl\":\"https:\\\/\\\/cdm.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/04\\\/LOGO-NEW.png\",\"width\":512,\"height\":82,\"caption\":\"eManualOnline\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/EmanualOnline\\\/\",\"https:\\\/\\\/x.com\\\/eManualOnline\",\"https:\\\/\\\/www.instagram.com\\\/emanual.online\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/emanualonline\",\"https:\\\/\\\/www.pinterest.com\\\/emanualonline\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\",\"name\":\"JC Landry\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"contentUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"caption\":\"JC Landry\"},\"description\":\"JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of\u00a0TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.\",\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/jee514\",\"https:\\\/\\\/www.instagram.com\\\/rat_in_chief\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/jean-claude-landry-857781186\\\/\"],\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/author\\\/jclandry\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"OBD2 Code P2248 \u2013 Causes, Symptoms, and Repairs","description":"Learn all about the P2248 code, what causes oxygen sensor reference voltage performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.","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.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance","og_locale":"en_US","og_type":"article","og_title":"P2248 OBD2: O2 Sensor Reference Voltage Performance (Bank 2 Sensor 1)","og_description":"OBD-II Code P2248 is defined as an Oxygen Sensor Reference Voltage Performance issue. This code is significant in understanding the performance and","og_url":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance","og_site_name":"eManualOnline Blog","article_publisher":"https:\/\/www.facebook.com\/EmanualOnline\/","article_author":"https:\/\/www.facebook.com\/jee514","article_published_time":"2025-06-09T19:24:46+00:00","article_modified_time":"2025-09-16T03:17:48+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png","type":"image\/png"}],"author":"JC Landry","twitter_card":"summary_large_image","twitter_creator":"@eManualOnline","twitter_site":"@eManualOnline","twitter_misc":{"Written by":"JC Landry","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance#article","isPartOf":{"@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance"},"author":{"name":"JC Landry","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403"},"headline":"P2248 OBD2: O2 Sensor Reference Voltage Performance (Bank 2 Sensor 1)","datePublished":"2025-06-09T19:24:46+00:00","dateModified":"2025-09-16T03:17:48+00:00","mainEntityOfPage":{"@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance"},"wordCount":387,"commentCount":0,"publisher":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance#primaryimage"},"thumbnailUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png","articleSection":["P Codes - OBD2 Powertrain Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance","url":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance","name":"OBD2 Code P2248 \u2013 Causes, Symptoms, and Repairs","isPartOf":{"@id":"https:\/\/www.emanualonline.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance#primaryimage"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance#primaryimage"},"thumbnailUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png","datePublished":"2025-06-09T19:24:46+00:00","dateModified":"2025-09-16T03:17:48+00:00","description":"Learn all about the P2248 code, what causes oxygen sensor reference voltage performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.","breadcrumb":{"@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance#primaryimage","url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png","contentUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png","width":1200,"height":675,"caption":"P2248 OBD2: O2 Sensor Reference Voltage Performance"},{"@type":"BreadcrumbList","@id":"https:\/\/www.emanualonline.com\/blog\/p2248-obd2-o2-sensor-reference-voltage-performance#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.emanualonline.com\/blog\/"},{"@type":"ListItem","position":2,"name":"P2248 OBD2: O2 Sensor Reference Voltage Performance (Bank 2 Sensor 1)"}]},{"@type":"WebSite","@id":"https:\/\/www.emanualonline.com\/blog\/#website","url":"https:\/\/www.emanualonline.com\/blog\/","name":"eManualOnline Blog","description":"Free Tips on Car Service, Repair and General Stuff","publisher":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.emanualonline.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.emanualonline.com\/blog\/#organization","name":"eManualOnline","url":"https:\/\/www.emanualonline.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/cdm.emanualonline.com\/blog\/wp-content\/uploads\/2021\/04\/LOGO-NEW.png","contentUrl":"https:\/\/cdm.emanualonline.com\/blog\/wp-content\/uploads\/2021\/04\/LOGO-NEW.png","width":512,"height":82,"caption":"eManualOnline"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/EmanualOnline\/","https:\/\/x.com\/eManualOnline","https:\/\/www.instagram.com\/emanual.online\/","https:\/\/www.linkedin.com\/company\/emanualonline","https:\/\/www.pinterest.com\/emanualonline\/"]},{"@type":"Person","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403","name":"JC Landry","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","contentUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","caption":"JC Landry"},"description":"JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of\u00a0TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.","sameAs":["https:\/\/www.facebook.com\/jee514","https:\/\/www.instagram.com\/rat_in_chief\/","https:\/\/www.linkedin.com\/in\/jean-claude-landry-857781186\/"],"url":"https:\/\/www.emanualonline.com\/blog\/author\/jclandry"}]}},"uagb_featured_image_src":{"full":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2248-obd2-o2-sensor-reference-voltage-performance-1050x525.png",1050,525,true]},"uagb_author_info":{"display_name":"JC Landry","author_link":"https:\/\/www.emanualonline.com\/blog\/author\/jclandry"},"uagb_comment_info":0,"uagb_excerpt":"OBD-II Code P2248 is defined as an Oxygen Sensor Reference Voltage Performance issue. This code is significant in understanding the performance and functionality of your vehicle&#8217;s oxygen sensor. What Does the P2248 Code Mean? The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the combustion&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/comments?post=79600"}],"version-history":[{"count":4,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79600\/revisions"}],"predecessor-version":[{"id":96529,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79600\/revisions\/96529"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/88344"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}