{"id":74316,"date":"2022-10-09T23:28:04","date_gmt":"2022-10-10T06:28:04","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=74316"},"modified":"2026-02-10T17:40:08","modified_gmt":"2026-02-11T01:40:08","slug":"p0270-cylinder-4-injector-circuit-low","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0270-cylinder-4-injector-circuit-low\/","title":{"rendered":"P0270: Cylinder 4 Injector Circuit Low"},"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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column74316_df9e84-45 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column74316_df9e84-45 > .kt-inside-inner-col,.kadence-column74316_df9e84-45 > .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-column74316_df9e84-45 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column74316_df9e84-45 > .kt-inside-inner-col{flex-direction:column;}.kadence-column74316_df9e84-45 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column74316_df9e84-45 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column74316_df9e84-45{position:relative;}@media all and (max-width: 1024px){.kadence-column74316_df9e84-45 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column74316_df9e84-45 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column74316_df9e84-45 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-cb41c5  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-0d0af1\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading74316_279a3d-89, .wp-block-kadence-advancedheading.kt-adv-heading74316_279a3d-89[data-kb-block=\"kb-adv-heading74316_279a3d-89\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading74316_279a3d-89 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading74316_279a3d-89[data-kb-block=\"kb-adv-heading74316_279a3d-89\"] 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-heading74316_279a3d-89 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading74316_279a3d-89[data-kb-block=\"kb-adv-heading74316_279a3d-89\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading74316_279a3d-89 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading74316_279a3d-89\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DTC P0270 stands for &ldquo;Cylinder 4 Injector Circuit Low.&rdquo;<\/li>\n\n\n\n<li>This code is logged when the PCM detects low voltage from the cylinder #4 injector circuit in the firing order.<\/li>\n\n\n\n<li>Code P0270 is commonly caused by dirty fuel injectors, malfunctioning fuel injectors, and connector issues.<\/li>\n\n\n\n<li>Symptoms of code P0270 include a lit check engine light, a rough running engine, and poor fuel economy.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The electronic fuel injection system is controlled by your vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control module\">powertrain control module<\/a> (PCM). The latter has special transistors called &ldquo;drivers&rdquo; that turn the fuel injectors on and off.<\/p>\n\n\n\n<p>P0270 is a generic trouble code related to a fault in the cylinder 4 injector circuit. Know more about it through this article.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0270 Code Mean?<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Diagnostic trouble code\">Diagnostic trouble code<\/a> (DTC) P0270 stands for &ldquo;Cylinder 4 Injector Circuit Low.&rdquo; The code is set once the PCM detects low voltage from the cylinder #4 injector circuit in the firing order.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"602\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-injector-replacements-for-car-1024x602.jpg\" alt=\"fuel injector replacements for car\" class=\"wp-image-74531\" style=\"width:1024px;height:602px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-injector-replacements-for-car-1024x602.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-injector-replacements-for-car-300x176.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-injector-replacements-for-car-768x452.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-injector-replacements-for-car-1536x904.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-injector-replacements-for-car-150x88.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-injector-replacements-for-car.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Each of the fuel injectors is equipped with a solenoid-operated valve that allows pressurized fuel to flow out.<\/figcaption><\/figure>\n\n\n\n<p>Each of the <a href=\"https:\/\/www.carparts.com\/fuel-injector\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fuel injectors\">fuel injectors<\/a> is equipped with a solenoid-operated valve that allows pressurized fuel to flow out. The valve is controlled by a special transistor called a &ldquo;driver.&rdquo; The &ldquo;driver&rdquo; needs to be energized to create a closed circuit and move the valve to an open position.<\/p>\n\n\n\n<p>The PCM monitors fuel injection operation and electrical resistance. A low voltage situation in cylinder #4 might mean your fuel injector is malfunctioning.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P0270 can differ according to the vehicle manufacturer. Check 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 P0270 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.carparts.com\/blog\/how-to-clean-fuel-injectors\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Dirty fuel injector\">Dirty fuel injector<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/the-top-6-signs-of-bad-fuel-injectors\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Malfunctioning fuel injector\">Malfunctioning fuel injector<\/a><\/li>\n\n\n\n<li>Fuel injector harness issue (Open or shorted)<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/fuel-injector-connector\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Fuel injector connector\">Fuel injector connector<\/a> issue (loose or corroded)<\/li>\n<\/ul>\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<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0270 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=\"Illuminated check engine light\">Illuminated check engine light<\/a><\/li>\n\n\n\n<li>Rough running engine<\/li>\n\n\n\n<li>Lack of engine power<\/li>\n\n\n\n<li>Poor fuel economy<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0270 Code<\/h2>\n\n\n\n<p>DTC P0270 can be retrieved from vehicles of various makes and models. However, this does not mean that the diagnostic and repair procedures are the same for all vehicles.<\/p>\n\n\n\n<p>If you&rsquo;re an experienced DIYer, you can opt to do the job yourself. If you are unfamiliar with the system or vehicle repair in general, you should have a mechanic diagnose the problem.<\/p>\n\n\n\n<p>The following video will give you an idea of what the diagnostic process might entail:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"FIX Code P0261, P0262, P0262, P0264, P0265, P0267, P0268, P0269, P0270, P0271, P0272 Ram Promaster\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/-DMUbF6l8sQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0270 Code<\/h2>\n\n\n\n<p>It is not simple to fix code P0270. If you&rsquo;re not familiar with vehicle repair, we recommend taking your vehicle to a mechanic.<\/p>\n\n\n\n<p>If you have the necessary tools and know-how, you can try to fix the problem yourself. But before attempting any fixes, it&rsquo;s good to brush up on your knowledge and research vehicle-specific repair information.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Repair manuals\">Repair manuals<\/a> like those from Chilton or a subscription to an online repair database may provide you with the information you need to clear this code.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/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\/fuel-injector\/replacement\/repf314302\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repf314302_1\" alt=\"Replacement &ndash; Fuel Injector, with Red Connector\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repf314302_1\" alt=\"Replacement &ndash; Fuel Injector, with Red Connector\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/fuel-injector\/replacement\/repf314302\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Replacement &ndash; Fuel Injector, with Red Connector\">Replacement &ndash; Fuel Injector, with Red Connector<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$22.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/fuel-injector\/replacement\/repf314302\" 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\/fuel-injector\/replacement\/rd31430003\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/rd31430003_1\" alt=\"Replacement &ndash; Fuel Injector, Blade Type, 2-Prong Male Terminal, Includes O-Ring\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/rd31430003_1\" alt=\"Replacement &ndash; Fuel Injector, Blade Type, 2-Prong Male Terminal, Includes O-Ring\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/fuel-injector\/replacement\/rd31430003\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Replacement &ndash; Fuel Injector, Blade Type, 2-Prong Male Terminal, Includes O-Ring\">Replacement &ndash; Fuel Injector, Blade Type, 2-Prong Male Terminal, Includes O-Ring<\/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\">$16.99<\/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\/fuel-injector\/replacement\/rd31430003\" 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\/fuel-injector\/replacement\/repf314301\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repf314301_1\" alt=\"Replacement &ndash; Fuel Injector &ndash; New, Sold individually\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repf314301_1\" alt=\"Replacement &ndash; Fuel Injector &ndash; New, Sold individually\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/fuel-injector\/replacement\/repf314301\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Replacement &ndash; Fuel Injector &ndash; New, Sold individually\">Replacement &ndash; Fuel Injector &ndash; New, Sold individually<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$27.99<\/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\/fuel-injector\/replacement\/repf314301\" 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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The electronic fuel injection system is controlled by your vehicle&rsquo;s powertrain control module (PCM). The latter has special transistors called&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0270-cylinder-4-injector-circuit-low\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":74526,"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":[1323,1185,3580],"ppma_author":[2607,2855],"class_list":{"0":"post-74316","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-2","9":"tag-fuel-injector-2","10":"tag-fuel-injector-connector","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0270: Cylinder 4 Injector Circuit Low - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Know more about the P0270 code, its possible causes, and the common symptoms associated with this code in this article.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.carparts.com\/blog\/p0270-cylinder-4-injector-circuit-low\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0270: Cylinder 4 Injector Circuit Low - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Know more about the P0270 code, its possible causes, and the common symptoms associated with this code in this article.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0270-cylinder-4-injector-circuit-low\/\" \/>\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:author\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-10T06:28:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-11T01:40:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/fuel-injector-causing-p0270-code-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1365\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, William Guzenski, ASE Certified Master Automobile Technician\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/CarPartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CarParts.com Research Team\" \/>\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\\\/p0270-cylinder-4-injector-circuit-low\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0270-cylinder-4-injector-circuit-low\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1651\",\"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. 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