{"id":528360,"date":"2026-07-17T01:57:47","date_gmt":"2026-07-17T05:57:47","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=528360"},"modified":"2026-07-17T01:57:47","modified_gmt":"2026-07-17T05:57:47","slug":"2004-mitsubishi-lancer-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/","title":{"rendered":"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions<\/h1>\n<p class=\"hero-subtitle\">The powertrain control module (PCM) in your 2004 Mitsubishi Lancer manages fuel delivery, ignition timing, and emissions systems. Failures may cause erratic engine behavior, poor performance, or complete shutdowns, often triggered by electrical faults or internal corruption.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The PCM controls critical engine and transmission functions in the 2004 Lancer.<\/li>\n<li>Replacement typically requires 0.4 hours of labor for removal and installation.<\/li>\n<li>A relearn procedure (0.5 hours) may be needed after installation unless using a pre-programmed unit.<\/li>\n<li>Symptoms of failure include no-start conditions, stalling, or stored trouble codes.<\/li>\n<li>Flagship One provides VIN-matched replacement modules to avoid additional programming steps.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>If your 2004 Mitsubishi Lancer has been stalling unexpectedly, refusing to start, or throwing mysterious engine codes, the powertrain control module (PCM) could be the culprit. This small but critical computer oversees everything from fuel injection to ignition timing, ensuring smooth operation. When it fails, the symptoms can range from subtle performance hiccups to complete immobilization. Replacing the PCM isn\u2019t just about swapping a part\u2014it involves careful installation and, in most cases, a relearn procedure to sync the new module with your vehicle\u2019s systems. Understanding the role of the PCM, where it\u2019s located, and what to expect during replacement can save you time and frustration. Whether you\u2019re diagnosing an existing issue or preparing for a potential repair, knowing these details helps you make informed decisions about your Lancer\u2019s health.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2004 Mitsubishi Lancer<\/h2>\n<p>The powertrain control module in your 2004 Mitsubishi Lancer acts as the brain of the engine and transmission, coordinating fuel delivery, ignition timing, and emissions controls. It constantly adjusts these systems based on sensor inputs, ensuring optimal performance and efficiency. Without a properly functioning PCM, your Lancer may struggle to start, run roughly, or even fail to accelerate. This module also communicates with the transmission control unit, influencing shift patterns and smoothness. Over time, electrical surges, moisture intrusion, or internal component degradation may compromise its operation. When replacement becomes necessary, choosing <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/mitsubishi-pcm-ecm-ecu-engine-computer\/lancer-engine-computers.html\">replacement engine computers for the Mitsubishi Lancer<\/a> ensures compatibility and restores reliable operation. The PCM\u2019s role is so central that even minor malfunctions can trigger a cascade of drivability issues, making timely attention critical.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>In the 2004 Mitsubishi Lancer, the powertrain control module is mounted in the engine bay, typically near the firewall or strut tower. Accessing it involves removing a protective cover or air intake components, though the exact steps may vary slightly depending on the vehicle\u2019s configuration. Once exposed, the module is secured with a few bolts or screws, and its electrical connector must be carefully disconnected to avoid damaging the pins. Reinstallation follows the reverse process, with the new unit positioned and secured in place. The labor guide estimates 0.4 hours for the removal and replacement procedure, assuming no additional complications like seized fasteners or corroded connectors. Proper torque on mounting hardware is essential to prevent vibration-related issues, though specific torque values aren\u2019t always provided in standard labor times.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Operation<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Configuration<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Book Time<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.4 hr<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After installing a new powertrain control module in your 2004 Mitsubishi Lancer, the factory procedure typically requires a relearn process to synchronize the module with the vehicle\u2019s systems. This step, estimated at 0.5 hours of labor, ensures the PCM recognizes sensor inputs and adapts to the engine\u2019s operating characteristics. However, <a href=\"https:\/\/www.fs1inc.com\/2004-mitsubishi-lancer-2-0l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\">a VIN-programmed replacement unit<\/a> from Flagship One arrives pre-configured to match your Lancer\u2019s specifications, eliminating the need for this additional step. The module is programmed to communicate with the engine, transmission, and emissions systems right out of the box, reducing both labor time and the risk of calibration errors. While some vehicles may still require a brief drive cycle to complete initialization, the core programming is already in place, streamlining the repair process.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>A failing powertrain control module in your 2004 Mitsubishi Lancer may produce a range of symptoms, often starting with intermittent issues that worsen over time. Common signs include a no-start condition, where the engine cranks but refuses to fire, or sudden stalling at idle or while driving. You might also notice poor acceleration, rough idling, or misfires, which can trigger the check engine light. In some cases, the transmission may shift erratically or fail to engage gears properly, as the PCM influences shift timing. Scan tool communication issues, where the module doesn\u2019t respond to diagnostic requests, are another red flag. Trouble codes like internal control module memory checksum error may appear, indicating corruption within the module\u2019s memory. Electrical faults, such as voltage spikes or poor grounding, can also cause the PCM to malfunction, leading to unpredictable behavior. If your Lancer exhibits any of these symptoms, prompt diagnosis is key to avoiding further drivability problems.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 2004 Mitsubishi Lancer<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Keep your Lancer\u2019s battery and charging system in good condition to avoid voltage spikes that may damage the PCM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect electrical connectors and grounds regularly for corrosion or loose connections, which can disrupt module communication.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address check engine lights or trouble codes promptly to prevent minor issues from escalating into major failures.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump-starting the vehicle with improper voltage, as this can overload sensitive electronics like the PCM.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure the PCM\u2019s protective cover and seals remain intact to prevent moisture intrusion, which may cause corrosion.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Use dielectric grease on connectors during reassembly to maintain reliable electrical contact and prevent oxidation.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>How do I know if my 2004 Mitsubishi Lancer\u2019s PCM is bad?<\/h3>\n<p>Symptoms like a no-start condition, stalling, or erratic engine behavior often point to a failing PCM. A scan tool may reveal trouble codes related to module memory or communication errors. If basic checks like battery voltage and sensor readings are normal, the PCM itself may be the issue.<\/p>\n<h3>Can I replace the PCM in my Lancer myself?<\/h3>\n<p>Replacing the PCM is mechanically straightforward, but it requires careful handling of electrical connectors and, in most cases, a relearn procedure. If you\u2019re comfortable with basic engine bay work and have access to a scan tool, it\u2019s possible to do it yourself. However, using a pre-programmed unit simplifies the process.<\/p>\n<h3>Why does my Lancer need a PCM relearn after replacement?<\/h3>\n<p>The relearn procedure allows the new PCM to adapt to your vehicle\u2019s specific sensor readings and operating conditions. Without it, the module may not communicate properly with the engine or transmission, leading to poor performance or drivability issues. This step is typically required unless the replacement unit is pre-programmed.<\/p>\n<h3>What causes a PCM to fail in a 2004 Mitsubishi Lancer?<\/h3>\n<p>Common causes include electrical surges from a failing alternator or battery, moisture intrusion due to damaged seals, or internal component degradation over time. Poor grounding or corroded connectors can also disrupt the module\u2019s operation, leading to intermittent or permanent failures.<\/p>\n<h3>Will a used PCM work in my Lancer?<\/h3>\n<p>A used PCM may work if it\u2019s from a compatible vehicle and hasn\u2019t been damaged, but it will still require programming to match your Lancer\u2019s VIN and systems. This adds complexity and potential compatibility issues, making a new or remanufactured unit a more reliable choice.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When your 2004 Mitsubishi Lancer\u2019s PCM fails, you have options beyond costly dealer replacements. A remanufactured or refurbished unit can restore functionality at a fraction of the price, especially when pre-programmed to match your vehicle\u2019s specifications. This approach eliminates the need for additional programming steps, reducing labor time and hassle. Whether you\u2019re tackling the repair yourself or working with a shop, choosing the right replacement ensures your Lancer runs smoothly without unnecessary delays.<\/p>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2004-mitsubishi-lancer-2-0l-pcm-engine-computer-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2004 Mitsubishi Lancer<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/chrysler-dodge-plymouth\/mitsubishi-pcm-ecm-ecu-engine-computer\/lancer-engine-computers.html\">Mitsubishi Lancer module lineup<\/a> covers other engine configurations as well.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Final Thoughts<\/h2>\n<p>The powertrain control module plays a vital role in keeping your 2004 Mitsubishi Lancer running reliably. When it fails, symptoms like stalling, no-start conditions, or erratic performance can disrupt your daily driving. Understanding the replacement process, from labor times to programming requirements, helps you make informed decisions about repairs. With the right replacement unit, you can restore your Lancer\u2019s performance and avoid the frustration of unresolved issues.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>2004 Mitsubishi Lancer with stalling, no-start, or misfire issues may need a PCM replacement. Learn symptoms, labor times, and why a pre-programmed unit simplifies repairs.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,295],"tags":[50,593,296],"class_list":["post-528360","post","type-post","status-publish","format-standard","hentry","category-car","category-mitsubishi","tag-50","tag-lancer","tag-mitsubishi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions - Flagship One Blog<\/title>\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.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"2004 Mitsubishi Lancer with stalling, no-start, or misfire issues may need a PCM replacement. Learn symptoms, labor times, and why a pre-programmed unit simplifies repairs.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/\" \/>\n<meta property=\"og:site_name\" content=\"Flagship One Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/flagshipone\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/flagshipone\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-17T05:57:47+00:00\" \/>\n<meta name=\"author\" content=\"FlagshipOne\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:site\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"FlagshipOne\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions\",\"datePublished\":\"2026-07-17T05:57:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/\"},\"wordCount\":1401,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"keywords\":[\"2004\",\"Lancer\",\"Mitsubishi\"],\"articleSection\":[\"Car\",\"Mitsubishi\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/\",\"name\":\"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"datePublished\":\"2026-07-17T05:57:47+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/2004-mitsubishi-lancer-pcm-replacement-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"name\":\"Flagship One Blog\",\"description\":\"Flagship One Inc. OEM Engine Computers  Control Modules\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\",\"name\":\"Flagship One, Inc.\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/web-lg-fs1-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/web-lg-fs1-logo.png\",\"width\":1341,\"height\":1098,\"caption\":\"Flagship One, Inc.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/flagshipone\",\"https:\\\/\\\/x.com\\\/theflagshipone\",\"https:\\\/\\\/www.instagram.com\\\/flagship_one\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UC0oyKphffBM2qkJ-gKPmMXw\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\",\"name\":\"FlagshipOne\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"caption\":\"FlagshipOne\"},\"description\":\"The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules.\",\"sameAs\":[\"https:\\\/\\\/www.fs1inc.com\\\/\",\"https:\\\/\\\/www.facebook.com\\\/flagshipone\\\/\",\"https:\\\/\\\/www.instagram.com\\\/flagship_one\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/fs1inc\"],\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/author\\\/flagship1inc\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions - Flagship One Blog","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.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/","og_locale":"en_US","og_type":"article","og_title":"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions - Flagship One Blog","og_description":"2004 Mitsubishi Lancer with stalling, no-start, or misfire issues may need a PCM replacement. Learn symptoms, labor times, and why a pre-programmed unit simplifies repairs.","og_url":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/","og_site_name":"Flagship One Blog","article_publisher":"https:\/\/www.facebook.com\/flagshipone","article_author":"https:\/\/www.facebook.com\/flagshipone\/","article_published_time":"2026-07-17T05:57:47+00:00","author":"FlagshipOne","twitter_card":"summary_large_image","twitter_creator":"@theflagshipone","twitter_site":"@theflagshipone","twitter_misc":{"Written by":"FlagshipOne","Est. reading time":"7 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions","datePublished":"2026-07-17T05:57:47+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/"},"wordCount":1401,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"keywords":["2004","Lancer","Mitsubishi"],"articleSection":["Car","Mitsubishi"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/","url":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/","name":"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"datePublished":"2026-07-17T05:57:47+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.fs1inc.com\/blog\/2004-mitsubishi-lancer-pcm-replacement-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"2004 Mitsubishi Lancer PCM Replacement and Engine Computer Functions"}]},{"@type":"WebSite","@id":"https:\/\/www.fs1inc.com\/blog\/#website","url":"https:\/\/www.fs1inc.com\/blog\/","name":"Flagship One Blog","description":"Flagship One Inc. OEM Engine Computers  Control Modules","publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.fs1inc.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.fs1inc.com\/blog\/#organization","name":"Flagship One, Inc.","url":"https:\/\/www.fs1inc.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2019\/06\/web-lg-fs1-logo.png","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2019\/06\/web-lg-fs1-logo.png","width":1341,"height":1098,"caption":"Flagship One, Inc."},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/flagshipone","https:\/\/x.com\/theflagshipone","https:\/\/www.instagram.com\/flagship_one","https:\/\/www.youtube.com\/channel\/UC0oyKphffBM2qkJ-gKPmMXw"]},{"@type":"Person","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700","name":"FlagshipOne","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","caption":"FlagshipOne"},"description":"The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules.","sameAs":["https:\/\/www.fs1inc.com\/","https:\/\/www.facebook.com\/flagshipone\/","https:\/\/www.instagram.com\/flagship_one\/","https:\/\/www.linkedin.com\/company\/fs1inc"],"url":"https:\/\/www.fs1inc.com\/blog\/author\/flagship1inc\/"}]}},"_links":{"self":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/528360","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/comments?post=528360"}],"version-history":[{"count":1,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/528360\/revisions"}],"predecessor-version":[{"id":528361,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/528360\/revisions\/528361"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=528360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=528360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=528360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}