{"id":534918,"date":"2026-07-17T18:04:23","date_gmt":"2026-07-17T22:04:23","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=534918"},"modified":"2026-07-17T18:04:23","modified_gmt":"2026-07-17T22:04:23","slug":"1993-toyota-supra-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/","title":{"rendered":"1993 Toyota Supra Engine Computer Replacement &#038; Relearning Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>1993 Toyota Supra Engine Computer Replacement &amp; Relearning Guide<\/h1>\n<p class=\"hero-subtitle\">The engine control module (ECU) in the 1993 Toyota Supra manages fuel injection, ignition timing, and emissions systems. Failures may cause stalling, poor performance, or a complete no-start condition due to disrupted sensor communication or internal faults.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>The 1993 Supra\u2019s ECU is located behind the instrument panel, requiring interior trim removal for access.<\/li>\n<li>Factory labor time for ECU replacement is 1.0 hours, with an additional 0.5 hours for relearning procedures.<\/li>\n<li>Disconnecting the battery must occur 90 seconds after turning the ignition to \u201cLOCK\u201d to avoid electrical issues.<\/li>\n<li>Replacement units from Flagship One arrive VIN-programmed, eliminating the need for manual relearning.<\/li>\n<li>Common symptoms include stalling, misfires, or failure to start, often without warning.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>If your 1993 Toyota Supra is experiencing unexplained stalling, rough idling, or a refusal to start, the engine control module (ECU) may be at fault. This critical component governs fuel delivery, ignition timing, and emissions controls, ensuring smooth operation. Replacing it involves more than just swapping hardware\u2014proper installation and programming are essential to restore performance. Understanding the location, labor requirements, and post-replacement steps helps you avoid unnecessary delays or complications. Whether you\u2019re diagnosing a persistent issue or preparing for a repair, knowing these details ensures a smoother process and gets your Supra back on the road reliably.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 1993 Toyota Supra<\/h2>\n<p>The ECU in the 1993 Toyota Supra acts as the brain of the engine, interpreting signals from sensors to optimize fuel mixture and ignition timing. Without it, the engine may run poorly or fail to start entirely. Over time, internal components can degrade, leading to erratic behavior or complete failure. When replacement becomes necessary, <a href=\"https:\/\/www.fs1inc.com\/toyota-ecm-pcm-ecu-engine-computer\/supra-engine-computers.html\">replacement engine computers for the Supra<\/a> are designed to match the original specifications, ensuring compatibility with the vehicle\u2019s systems. Proper installation and programming are critical, as even a minor mismatch can disrupt performance or trigger drivability issues.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The 1993 Supra\u2019s ECU is mounted behind the instrument panel, requiring removal of interior trim for access. Factory labor estimates allocate 1.0 hours for replacement, which includes disconnecting the wiring harness, removing the old unit, and securing the new module. The process is straightforward but demands care to avoid damaging connectors or surrounding components. Once installed, the battery must be reconnected following the factory caution: wait 90 seconds after turning the ignition to \u201cLOCK\u201d before disconnecting the negative terminal. This step helps prevent electrical surges that could affect the new ECU or other sensitive electronics.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1993-toyota-supra-pcm-location-diagram.webp\" alt=\"1993 Toyota Supra PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">PCM mounting location on the 1993 Toyota Supra.<\/figcaption><\/figure>\n<div style=\"background:#f7f9fc;border:1px solid #e2e8f2;border-radius:10px;padding:18px 24px;margin:18px 0\">\n<h3 style='margin-top:0'>How to Reach the PCM on the 1993 Toyota Supra<\/h3>\n<ol style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> negative terminal cable from.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Position<\/b> and the negative (\u2013) terminal cable is discon\u2013.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> scuff plate.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> ECM protector.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the 2 nuts and ECM protector.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the nut, and disconnect the ECM from the.<\/li>\n<\/ol>\n<p style='margin:10px 0 0 0'><em>Work with the ignition off, and treat the module as static-sensitive: avoid touching the connector pins at any point.<\/em><\/p>\n<\/div>\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\">Engine 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\">1.0 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain 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\">1.0 hr<\/td>\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<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After installing a new ECU in the 1993 Supra, the factory requires a relearn procedure, typically taking 0.5 hours. This step ensures the module synchronizes with the engine\u2019s sensors and fuel system. However, <a href=\"1993-toyota-supra-3-0l-pcm-engine-computer-ecm-ecu-programmed-plug-play\">a VIN-programmed replacement unit<\/a> from Flagship One arrives pre-configured, eliminating the need for manual relearning. This saves time and reduces the risk of incomplete initialization, which could lead to poor performance or persistent drivability issues. Simply install the unit, reconnect the battery following the factory caution, and the vehicle should operate as expected without additional steps.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>A failing ECU in the 1993 Toyota Supra may cause a range of symptoms, from intermittent stalling to a complete no-start condition. Drivers often report rough idling, hesitation under acceleration, or erratic shifting if the module affects transmission signals. In some cases, the engine may crank but fail to start due to disrupted fuel or ignition timing. Dead communication with a scan tool is another red flag, indicating the ECU is unresponsive. While these issues can stem from other sources, persistent symptoms without clear mechanical causes suggest the module itself may be compromised. Addressing the problem early can prevent further drivability issues.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 1993 Toyota Supra<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Maintain a healthy charging system to avoid voltage spikes that can damage the ECU.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect and clean electrical connectors regularly to prevent corrosion or poor contact.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump-starting with improper voltage, as surges may harm sensitive electronics.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address warning signs like stalling or rough idling promptly to prevent further damage.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Ensure the battery is disconnected properly, following the factory 90-second delay rule.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Keep the ECU\u2019s connector seals intact to prevent moisture intrusion.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>Why does my 1993 Supra stall randomly after sitting overnight?<\/h3>\n<p>Random stalling in the 1993 Supra may indicate an ECU struggling to maintain consistent sensor communication. Cold temperatures can exacerbate internal faults, leading to intermittent failures. Testing the module\u2019s connections and voltage supply often reveals the issue, though replacement may be necessary if symptoms persist.<\/p>\n<h3>Can I drive my 1993 Supra with a bad ECU until I replace it?<\/h3>\n<p>Driving with a faulty ECU is risky, as it may cause sudden stalling or complete engine shutdown. Performance issues like misfires or poor acceleration can also develop, making the vehicle unsafe to operate. Replacement is recommended as soon as symptoms appear to avoid further complications.<\/p>\n<h3>How do I know if my 1993 Supra\u2019s ECU is failing or if it\u2019s a sensor issue?<\/h3>\n<p>ECU failures in the 1993 Supra often mimic sensor issues, such as erratic idling or poor fuel economy. A thorough inspection of wiring and connectors can rule out external problems. If sensors test within specifications but symptoms persist, the ECU itself may be the root cause and require replacement.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When the 1993 Toyota Supra\u2019s ECU fails, repair isn\u2019t always practical due to the complexity of internal components. A refurbished replacement unit offers a reliable alternative, restoring original performance without the uncertainty of used parts. Given the labor involved, choosing a pre-programmed module saves time and ensures proper initialization. Whether you\u2019re addressing a no-start condition or persistent drivability issues, a direct replacement is often the most efficient solution.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/media\/wysiwyg\/googleshop\/toyotastock\/toyota-pcm-stock.jpg\" alt=\"Refurbished VIN-programmed PCM for the 1993 Toyota Supra\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">A refurbished, VIN-programmed replacement PCM for the 1993 Toyota Supra from Flagship One.<\/figcaption><\/figure>\n<p>Flagship One stocks a <a href=\"1993-toyota-supra-3-0l-pcm-engine-computer-ecm-ecu-programmed-plug-play\"><b>refurbished, VIN-programmed PCM for the 1993 Toyota Supra<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/toyota-ecm-pcm-ecu-engine-computer\/supra-engine-computers.html\">Toyota Supra 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 1993 Toyota Supra relies on its ECU to maintain smooth, reliable operation. When symptoms like stalling or no-start conditions arise, prompt replacement can prevent further complications. With the right unit and proper installation, your Supra will return to its expected performance. Consider a pre-programmed module to simplify the process and get back on the road with confidence.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>1993 Toyota Supra with stalling, no-start, or erratic engine behavior may need an ECU replacement. Learn the location, labor time, and factory relearn cautions for this pre-OBD-II model.<\/p>\n","protected":false},"author":1,"featured_media":520803,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,104],"tags":[275,341,96],"class_list":["post-534918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-toyota","tag-275","tag-supra","tag-toyota"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>1993 Toyota Supra Engine Computer Replacement &amp; Relearning Guide - 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\/1993-toyota-supra-pcm-replacement-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1993 Toyota Supra Engine Computer Replacement &amp; Relearning Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"1993 Toyota Supra with stalling, no-start, or erratic engine behavior may need an ECU replacement. Learn the location, labor time, and factory relearn cautions for this pre-OBD-II model.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-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=\"2026-07-17T22:04:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1993-toyota-supra-pcm-location-diagram.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"688\" \/>\n\t<meta property=\"og:image:height\" content=\"912\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\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=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"1993 Toyota Supra Engine Computer Replacement &#038; Relearning Guide\",\"datePublished\":\"2026-07-17T22:04:23+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/\"},\"wordCount\":1163,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1993-toyota-supra-pcm-location-diagram.webp\",\"keywords\":[\"1993\",\"Supra\",\"Toyota\"],\"articleSection\":[\"Car\",\"Toyota\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/\",\"name\":\"1993 Toyota Supra Engine Computer Replacement & Relearning Guide - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1993-toyota-supra-pcm-location-diagram.webp\",\"datePublished\":\"2026-07-17T22:04:23+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1993-toyota-supra-pcm-location-diagram.webp\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/1993-toyota-supra-pcm-location-diagram.webp\",\"width\":688,\"height\":912,\"caption\":\"Factory location diagram for the 1993 Toyota Supra engine control module\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/1993-toyota-supra-pcm-replacement-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"1993 Toyota Supra Engine Computer Replacement &#038; Relearning Guide\"}]},{\"@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":"1993 Toyota Supra Engine Computer Replacement & Relearning Guide - 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\/1993-toyota-supra-pcm-replacement-guide\/","og_locale":"en_US","og_type":"article","og_title":"1993 Toyota Supra Engine Computer Replacement & Relearning Guide - Flagship One Blog","og_description":"1993 Toyota Supra with stalling, no-start, or erratic engine behavior may need an ECU replacement. Learn the location, labor time, and factory relearn cautions for this pre-OBD-II model.","og_url":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-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":"2026-07-17T22:04:23+00:00","og_image":[{"width":688,"height":912,"url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1993-toyota-supra-pcm-location-diagram.webp","type":"image\/webp"}],"author":"FlagshipOne","twitter_card":"summary_large_image","twitter_creator":"@theflagshipone","twitter_site":"@theflagshipone","twitter_misc":{"Written by":"FlagshipOne","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"1993 Toyota Supra Engine Computer Replacement &#038; Relearning Guide","datePublished":"2026-07-17T22:04:23+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/"},"wordCount":1163,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1993-toyota-supra-pcm-location-diagram.webp","keywords":["1993","Supra","Toyota"],"articleSection":["Car","Toyota"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/","url":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/","name":"1993 Toyota Supra Engine Computer Replacement & Relearning Guide - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/#primaryimage"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1993-toyota-supra-pcm-location-diagram.webp","datePublished":"2026-07-17T22:04:23+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/#primaryimage","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1993-toyota-supra-pcm-location-diagram.webp","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/1993-toyota-supra-pcm-location-diagram.webp","width":688,"height":912,"caption":"Factory location diagram for the 1993 Toyota Supra engine control module"},{"@type":"BreadcrumbList","@id":"https:\/\/www.fs1inc.com\/blog\/1993-toyota-supra-pcm-replacement-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"1993 Toyota Supra Engine Computer Replacement &#038; Relearning Guide"}]},{"@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\/534918","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=534918"}],"version-history":[{"count":1,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/534918\/revisions"}],"predecessor-version":[{"id":534919,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/534918\/revisions\/534919"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media\/520803"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=534918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=534918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=534918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}