{"id":7059622,"date":"2026-09-17T05:20:48","date_gmt":"2026-09-17T05:20:48","guid":{"rendered":"https:\/\/peraltafinancing.com\/uncategorized\/recreating-unobtainable-diagnostic-tools-for-the-jaguar-xj220\/"},"modified":"2026-09-17T05:20:48","modified_gmt":"2026-09-17T05:20:48","slug":"recreating-unobtainable-diagnostic-tools-for-the-jaguar-xj220","status":"publish","type":"post","link":"https:\/\/fivemor.com\/?p=7059622","title":{"rendered":"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div itemprop=\"articleBody\">\n<p>If you own a Jaguar XJ220 or the rarer XJR-15, you\u2019re probably not short on money or real estate. You may, however, be finding it hard to lay your hands on a diagnostic tool that is compatible with the ancient Zytek ECU. <a href=\"https:\/\/www.port220.com\/about\" target=\"_blank\">Thankfully, [Tom Radom], is working to change that.\u00a0<\/a><\/p>\n<p>As the owner of XJ220 chassis #50, [Tom] was unlucky enough to see the dreaded check engine light come on last year. He was lucky enough to get his hands on an SPD-1039 interface, built to talk to the Zytek ECU that runs the car. However, he was painfully aware that these devices are now incredibly rare and hard to come by, even given the tiny limited market of owners of 1990s Jaguar supercars. Thus, he set about building a replacement.<\/p>\n<p>An initial effort to open up and reverse engineer the Zytek interface failed, mostly because it had been potted rather successfully in silicone. Thus, [Tom] took a new tack. He hooked up a logic analyser between the interface and the car, recording the traffic between the two. This captured data allowed [Tom] to recreate the interface using a FT232RNL bridge to chat to the Zytek engine control unit. There was no attempt to rebuild the software\u2014the original DOS-based diagnostic still runs perfectly fine in an emulator. It was just the hardware interface from a serial port to the car that needed to be recreated.<\/p>\n<p>[Tom] has been building the modules and supplying them to owners of XJ220, XJ220S, and XJR-15 models at no charge. He believes simply having a viable diagnostic tool available will increase the value of these classic cars by more than the costs he incurred to develop the interface. Interested parties can submit their details via webform <a href=\"https:\/\/www.port220.com\/\" target=\"_blank\">on Port220.com.<\/a><\/p>\n<p>For a modern vehicle, the ECU is everything. Without it, the car doesn\u2019t run. That\u2019s why we\u2019ve seen some <a href=\"https:\/\/hackaday.com\/2024\/10\/24\/simple-pcb-repairs-keep-old-vehicle-out-of-the-crusher\/\">heroic fixes to rescue cars and get them back on the road.<\/a> If you\u2019re doing your own wizardry to talk to cars of the past, don\u2019t hesitate to <a href=\"http:\/\/hackaday.com\/submit-a-tip\">notify the tipsline.<\/a><\/p>\n<\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>If you own a Jaguar XJ220 or the rarer XJR-15, you\u2019re probably not short on money or real estate. You may, however, be finding it hard to lay your hands on a diagnostic tool that is compatible with the ancient Zytek ECU. Thankfully, [Tom Radom], is working to change that.\u00a0 As the owner of XJ220 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7059623,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[132464,221883,221885,209688,221886,221884,221887],"tags":[68868,3838,31692,708,221888,221889],"dealstore":[],"offerexpiration":[],"class_list":["post-7059622","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-car-hacks","category-ecu","category-jaguar","category-jaguar-xj220","category-tool-hacks","category-xj220","tag-diagnostic","tag-jaguar","tag-recreating","tag-tools","tag-unobtainable","tag-xj220"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220 - Som2ny Network<\/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:\/\/fivemor.com\/?p=7059622\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220 - Som2ny Network\" \/>\n<meta property=\"og:description\" content=\"If you own a Jaguar XJ220 or the rarer XJR-15, you\u2019re probably not short on money or real estate. You may, however, be finding it hard to lay your hands on a diagnostic tool that is compatible with the ancient Zytek ECU. Thankfully, [Tom Radom], is working to change that.\u00a0 As the owner of XJ220 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fivemor.com\/?p=7059622\" \/>\n<meta property=\"og:site_name\" content=\"Som2ny Network\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-17T05:20:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1170\" \/>\n\t<meta property=\"og:image:height\" content=\"657\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fivemor.com\/?p=7059622#article\",\"isPartOf\":{\"@id\":\"https:\/\/fivemor.com\/?p=7059622\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/fivemor.com\/#\/schema\/person\/b85e3c3dc0e1daea076524dc8810c371\"},\"headline\":\"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220\",\"datePublished\":\"2026-09-17T05:20:48+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fivemor.com\/?p=7059622\"},\"wordCount\":362,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fivemor.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/fivemor.com\/?p=7059622#primaryimage\"},\"thumbnailUrl\":\"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg\",\"keywords\":[\"diagnostic\",\"Jaguar\",\"Recreating\",\"Tools\",\"Unobtainable\",\"XJ220\"],\"articleSection\":[\"car\",\"car hacks\",\"ecu\",\"Jaguar\",\"jaguar xj220\",\"Tool Hacks\",\"xj220\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fivemor.com\/?p=7059622#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fivemor.com\/?p=7059622\",\"url\":\"https:\/\/fivemor.com\/?p=7059622\",\"name\":\"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220 - Som2ny Network\",\"isPartOf\":{\"@id\":\"https:\/\/fivemor.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/fivemor.com\/?p=7059622#primaryimage\"},\"image\":{\"@id\":\"https:\/\/fivemor.com\/?p=7059622#primaryimage\"},\"thumbnailUrl\":\"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg\",\"datePublished\":\"2026-09-17T05:20:48+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/fivemor.com\/?p=7059622#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/fivemor.com\/?p=7059622\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/fivemor.com\/?p=7059622#primaryimage\",\"url\":\"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg\",\"contentUrl\":\"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg\",\"width\":1170,\"height\":657},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/fivemor.com\/?p=7059622#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/fivemor.com\/?bp_activities=1\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/fivemor.com\/#website\",\"url\":\"https:\/\/fivemor.com\/\",\"name\":\"Som2ny Network\",\"description\":\"Daily Deals\",\"publisher\":{\"@id\":\"https:\/\/fivemor.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/fivemor.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/fivemor.com\/#organization\",\"name\":\"Som2ny Network\",\"url\":\"https:\/\/fivemor.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/fivemor.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/07\/4a0953c4-logo-300x86-1.png\",\"contentUrl\":\"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/07\/4a0953c4-logo-300x86-1.png\",\"width\":300,\"height\":86,\"caption\":\"Som2ny Network\"},\"image\":{\"@id\":\"https:\/\/fivemor.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/fivemor.com\/#\/schema\/person\/b85e3c3dc0e1daea076524dc8810c371\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/fivemor.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/729ae85bf62b9917e93538db2f2688ca?s=96&r=g&default=https%3A%2F%2Ffivemor.com%2Fwp-content%2Fplugins%2Fbuddypress-first-letter-avatar%2Fimages%2Fdefault%2F96%2Flatin_a.png\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/729ae85bf62b9917e93538db2f2688ca?s=96&r=g&default=https%3A%2F%2Ffivemor.com%2Fwp-content%2Fplugins%2Fbuddypress-first-letter-avatar%2Fimages%2Fdefault%2F96%2Flatin_a.png\",\"caption\":\"admin\"},\"sameAs\":[\"https:\/\/fivemor.com\"],\"url\":\"https:\/\/fivemor.com\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220 - Som2ny Network","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:\/\/fivemor.com\/?p=7059622","og_locale":"en_US","og_type":"article","og_title":"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220 - Som2ny Network","og_description":"If you own a Jaguar XJ220 or the rarer XJR-15, you\u2019re probably not short on money or real estate. You may, however, be finding it hard to lay your hands on a diagnostic tool that is compatible with the ancient Zytek ECU. Thankfully, [Tom Radom], is working to change that.\u00a0 As the owner of XJ220 [&hellip;]","og_url":"https:\/\/fivemor.com\/?p=7059622","og_site_name":"Som2ny Network","article_published_time":"2026-09-17T05:20:48+00:00","og_image":[{"width":1170,"height":657,"url":"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"admin","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/fivemor.com\/?p=7059622#article","isPartOf":{"@id":"https:\/\/fivemor.com\/?p=7059622"},"author":{"name":"admin","@id":"https:\/\/fivemor.com\/#\/schema\/person\/b85e3c3dc0e1daea076524dc8810c371"},"headline":"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220","datePublished":"2026-09-17T05:20:48+00:00","mainEntityOfPage":{"@id":"https:\/\/fivemor.com\/?p=7059622"},"wordCount":362,"commentCount":0,"publisher":{"@id":"https:\/\/fivemor.com\/#organization"},"image":{"@id":"https:\/\/fivemor.com\/?p=7059622#primaryimage"},"thumbnailUrl":"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg","keywords":["diagnostic","Jaguar","Recreating","Tools","Unobtainable","XJ220"],"articleSection":["car","car hacks","ecu","Jaguar","jaguar xj220","Tool Hacks","xj220"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/fivemor.com\/?p=7059622#respond"]}]},{"@type":"WebPage","@id":"https:\/\/fivemor.com\/?p=7059622","url":"https:\/\/fivemor.com\/?p=7059622","name":"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220 - Som2ny Network","isPartOf":{"@id":"https:\/\/fivemor.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/fivemor.com\/?p=7059622#primaryimage"},"image":{"@id":"https:\/\/fivemor.com\/?p=7059622#primaryimage"},"thumbnailUrl":"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg","datePublished":"2026-09-17T05:20:48+00:00","breadcrumb":{"@id":"https:\/\/fivemor.com\/?p=7059622#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/fivemor.com\/?p=7059622"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/fivemor.com\/?p=7059622#primaryimage","url":"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg","contentUrl":"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/09\/791922756_17885299971682967_114969482871249288_n-e1789534861672.jpg","width":1170,"height":657},{"@type":"BreadcrumbList","@id":"https:\/\/fivemor.com\/?p=7059622#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/fivemor.com\/?bp_activities=1"},{"@type":"ListItem","position":2,"name":"Recreating Unobtainable Diagnostic Tools For The Jaguar XJ220"}]},{"@type":"WebSite","@id":"https:\/\/fivemor.com\/#website","url":"https:\/\/fivemor.com\/","name":"Som2ny Network","description":"Daily Deals","publisher":{"@id":"https:\/\/fivemor.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/fivemor.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/fivemor.com\/#organization","name":"Som2ny Network","url":"https:\/\/fivemor.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/fivemor.com\/#\/schema\/logo\/image\/","url":"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/07\/4a0953c4-logo-300x86-1.png","contentUrl":"https:\/\/fivemor.com\/wp-content\/uploads\/2026\/07\/4a0953c4-logo-300x86-1.png","width":300,"height":86,"caption":"Som2ny Network"},"image":{"@id":"https:\/\/fivemor.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/fivemor.com\/#\/schema\/person\/b85e3c3dc0e1daea076524dc8810c371","name":"admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/fivemor.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/729ae85bf62b9917e93538db2f2688ca?s=96&r=g&default=https%3A%2F%2Ffivemor.com%2Fwp-content%2Fplugins%2Fbuddypress-first-letter-avatar%2Fimages%2Fdefault%2F96%2Flatin_a.png","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/729ae85bf62b9917e93538db2f2688ca?s=96&r=g&default=https%3A%2F%2Ffivemor.com%2Fwp-content%2Fplugins%2Fbuddypress-first-letter-avatar%2Fimages%2Fdefault%2F96%2Flatin_a.png","caption":"admin"},"sameAs":["https:\/\/fivemor.com"],"url":"https:\/\/fivemor.com\/?author=1"}]}},"_links":{"self":[{"href":"https:\/\/fivemor.com\/index.php?rest_route=\/wp\/v2\/posts\/7059622","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fivemor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fivemor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fivemor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fivemor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7059622"}],"version-history":[{"count":0,"href":"https:\/\/fivemor.com\/index.php?rest_route=\/wp\/v2\/posts\/7059622\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fivemor.com\/index.php?rest_route=\/wp\/v2\/media\/7059623"}],"wp:attachment":[{"href":"https:\/\/fivemor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7059622"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fivemor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7059622"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fivemor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7059622"},{"taxonomy":"dealstore","embeddable":true,"href":"https:\/\/fivemor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fdealstore&post=7059622"},{"taxonomy":"offerexpiration","embeddable":true,"href":"https:\/\/fivemor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fofferexpiration&post=7059622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}