{"id":76844,"date":"2025-04-24T11:10:57","date_gmt":"2025-04-24T16:10:57","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=76844"},"modified":"2025-06-04T03:31:27","modified_gmt":"2025-06-04T08:31:27","slug":"p0302-obd2-cylinder-2-misfire-detected","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0302-obd2-cylinder-2-misfire-detected","title":{"rendered":"P0302 OBD2: Cylinder 2 Misfire Detected"},"content":{"rendered":"<p>The P0302 OBD-II code indicates that the engine control module (PCM) has detected a misfire in cylinder number two. This misfire occurs when the cylinder is not contributing sufficiently to the engine&#8217;s performance, affecting overall engine operation.<\/p>\n<h2>What Does the P0302 Code Mean?<\/h2>\n<p>OBD-II Code P0302 is defined as a misfire detected in the #2 cylinder. Misfires can lead to poor engine performance, increased emissions, and potential damage to the engine or other components if not addressed promptly.<\/p>\n<h2>What Causes the P0302 Code?<\/h2>\n<p>The P0302 code can be triggered by various issues, including:<\/p>\n<ul>\n<li>Worn out spark plugs, ignition wires, or coils<\/li>\n<li>Incorrect ignition timing<\/li>\n<li>Vacuum leaks<\/li>\n<li>Low or weak fuel pressure<\/li>\n<li>Improperly functioning EGR system<\/li>\n<li>Defective Mass Air Flow Sensor<\/li>\n<li>Defective crankshaft or camshaft sensors<\/li>\n<li>Mechanical engine problems, such as low compression or valve issues<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0302 Code?<\/h2>\n<p>Symptoms associated with the P0302 code may include:<\/p>\n<ul>\n<li>Flashing Check Engine Light<\/li>\n<li>Rough running, hesitation, or jerking when accelerating<\/li>\n<li>Performance issues like stalling at stop signs<\/li>\n<li>Rough idling<\/li>\n<li>Reduced fuel economy<\/li>\n<\/ul>\n<h2>How Serious Is the P0302 Code?<\/h2>\n<p>The P0302 code is considered urgent, as it indicates a significant malfunction that can lead to severe engine damage or pose risks to the driver and passengers. Prompt attention is necessary to avoid further complications.<\/p>\n<h2>How to Diagnose the P0302 Code<\/h2>\n<p>To diagnose the P0302 code, follow these steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the P0302 code and check for any related codes.<\/li>\n<li>Record the freeze frame data to understand the conditions under which the code was set.<\/li>\n<li>Perform a test drive to replicate the conditions that triggered the code while monitoring engine load, throttle position, RPM, and road speed.<\/li>\n<li>Inspect ignition system components for wear or damage.<\/li>\n<li>Check for vacuum leaks and examine fuel pressure.<\/li>\n<li>Consider performing a compression test to rule out mechanical issues.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0302 Code<\/h2>\n<p>Repairs for the P0302 code may include:<\/p>\n<ul>\n<li>Replacing worn spark plugs, ignition wires, or coils<\/li>\n<li>Fixing vacuum leaks<\/li>\n<li>Correcting ignition timing<\/li>\n<li>Replacing faulty sensors<\/li>\n<li>Repairing mechanical issues like head gasket leaks or low compression<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0302 Code?<\/h2>\n<p>The cost to fix the P0302 code can vary widely depending on the cause of the misfire and the make and model of the vehicle. Basic repairs, such as replacing spark plugs or ignition wires, may range from $100 to $300. More extensive repairs, such as fixing compression issues, can cost upwards of $1,000.<\/p>\n<h2>Can I Fix the P0302 Code Myself?<\/h2>\n<p>While some aspects of diagnosing and repairing the P0302 code can be handled by a knowledgeable DIYer, others may require specialized tools and expertise. If you are experienced with automotive repairs, you may be able to replace spark plugs or ignition components yourself. However, for more complex issues, or if you are unsure, it is advisable to seek professional assistance to ensure proper diagnosis and repair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0302 OBD-II code indicates that the engine control module (PCM) has detected a misfire in cylinder number two. This misfire occurs when the cylinder is not contributing sufficiently to the engine&#8217;s performance, affecting overall engine operation. What Does the P0302 Code Mean? OBD-II Code P0302 is defined as a misfire detected in the #2 &hellip;<\/p>\n","protected":false},"author":26,"featured_media":80622,"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-76844","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 v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OBD2 Code P0302 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0302 code, what causes cylinder 2 misfire, and how to diagnose and fix common issues 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\/p0302-obd2-cylinder-2-misfire-detected\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0302 OBD2: Cylinder 2 Misfire Detected\" \/>\n<meta property=\"og:description\" content=\"The P0302 OBD-II code indicates that the engine control module (PCM) has detected a misfire in cylinder number two. This misfire occurs when the cylinder\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0302-obd2-cylinder-2-misfire-detected\" \/>\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=\"2025-04-24T16:10:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-04T08:31:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected.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=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p0302-obd2-cylinder-2-misfire-detected#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p0302-obd2-cylinder-2-misfire-detected\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0302 OBD2: Cylinder 2 Misfire Detected\",\"datePublished\":\"2025-04-24T16:10:57+00:00\",\"dateModified\":\"2025-06-04T08:31:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p0302-obd2-cylinder-2-misfire-detected\"},\"wordCount\":486,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p0302-obd2-cylinder-2-misfire-detected#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected.png\",\"articleSection\":[\"P Codes - 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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\/05\/p0302-obd2-cylinder-2-misfire-detected.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p0302-obd2-cylinder-2-misfire-detected-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":"The P0302 OBD-II code indicates that the engine control module (PCM) has detected a misfire in cylinder number two. This misfire occurs when the cylinder is not contributing sufficiently to the engine&#8217;s performance, affecting overall engine operation. What Does the P0302 Code Mean? OBD-II Code P0302 is defined as a misfire detected in the #2&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/76844","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=76844"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/76844\/revisions"}],"predecessor-version":[{"id":76849,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/76844\/revisions\/76849"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/80622"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=76844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=76844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=76844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}