{"product_id":"honda-t1-coil-on-plug-harness-obd1-ecu-cop-wiring","title":"Honda T1 Coil-On-Plug Harness – LINK GX4 \/ PNP","description":"\u003ch2 data-start=\"534\" data-end=\"581\"\u003e\u003cstrong data-start=\"537\" data-end=\"581\"\u003eHonda T1 Coil-On-Plug Harness LINK GX4 \/ PNP\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"583\" data-end=\"952\"\u003eThis Honda T1 Coil-On-Plug harness is a complete, full-length ignition wiring solution designed for builders running a T1 ignition module or retaining T1 functionality on OBD1 Honda ECUs. Built using proven motorsport wiring practices, this harness provides a clean, reliable, and affordable path to coil-on-plug ignition without compromising on materials or execution.\u003c\/p\u003e\n\u003cp data-start=\"954\" data-end=\"1197\"\u003eSourced from \u003cstrong data-start=\"967\" data-end=\"986\"\u003eCarrotTopTuning\u003c\/strong\u003e and offered through VTEC Innovations, this harness fills the gap between low-quality DIY COP setups and full custom mil-spec systems — making it ideal for street, track, and budget-conscious performance builds.\u003c\/p\u003e\n\u003chr data-start=\"1199\" data-end=\"1202\"\u003e\n\u003ch2 data-start=\"1204\" data-end=\"1254\"\u003e\u003cstrong data-start=\"1207\" data-end=\"1254\"\u003eTrue Full-Length COP Harness – ECU to Coils\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1256\" data-end=\"1551\"\u003eUnlike short breakout or adapter-style solutions, this is a \u003cstrong data-start=\"1316\" data-end=\"1357\"\u003etrue full-length coil-on-plug harness\u003c\/strong\u003e, running directly from the ECU to the ignition coils and T1 module. This eliminates unnecessary splices, extensions, and failure points while ensuring clean routing and proper signal integrity.\u003c\/p\u003e\n\u003cp data-start=\"1553\" data-end=\"1677\"\u003eThe harness is designed to support reliable ignition performance while keeping installation straightforward and serviceable.\u003c\/p\u003e\n\u003chr data-start=\"1679\" data-end=\"1682\"\u003e\n\u003ch2 data-start=\"1684\" data-end=\"1739\"\u003e\u003cstrong data-start=\"1687\" data-end=\"1739\"\u003eMotorsport-Grade Materials at an Affordable Tier\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1741\" data-end=\"1932\"\u003eThis harness is constructed using \u003cstrong data-start=\"1775\" data-end=\"1797\"\u003eTefzel (ETFE) wire\u003c\/strong\u003e throughout, providing excellent heat resistance, chemical resistance, and long-term durability compared to standard automotive wiring.\u003c\/p\u003e\n\u003cp data-start=\"1934\" data-end=\"2141\"\u003eExpandable loom is used to protect the harness while allowing flexibility for clean routing in the engine bay. A \u003cstrong data-start=\"2047\" data-end=\"2077\"\u003ebooted DTM 4-pin connector\u003c\/strong\u003e is used at the T1 module for a sealed, professional connection.\u003c\/p\u003e\n\u003cp data-start=\"2143\" data-end=\"2292\"\u003ePower for the ignition system is protected by an \u003cstrong data-start=\"2192\" data-end=\"2244\"\u003eintegrated fused power lead located near the ECU\u003c\/strong\u003e, simplifying installation and improving safety.\u003c\/p\u003e\n\u003chr data-start=\"2294\" data-end=\"2297\"\u003e\n\u003ch2 data-start=\"2299\" data-end=\"2344\"\u003e\u003cstrong data-start=\"2302\" data-end=\"2344\"\u003eOBD1 ECU Terminated – Ready to Install\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2346\" data-end=\"2418\"\u003eAll ignition outputs are properly terminated with \u003cstrong data-start=\"2396\" data-end=\"2413\"\u003eOBD1 ECU pins\u003c\/strong\u003e for:\u003c\/p\u003e\n\u003cul data-start=\"2419\" data-end=\"2456\"\u003e\n\u003cli data-start=\"2419\" data-end=\"2432\"\u003e\n\u003cp data-start=\"2421\" data-end=\"2432\"\u003eCoils 1–4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2433\" data-end=\"2456\"\u003e\n\u003cp data-start=\"2435\" data-end=\"2456\"\u003eT1 ignition outputs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2458\" data-end=\"2673\"\u003eThis allows for a clean, plug-in installation on compatible OBD1 ECUs without additional wiring work. Designed for customers who want a functional, reliable COP solution without stepping into a fully custom harness.\u003c\/p\u003e\n\u003chr data-start=\"2675\" data-end=\"2678\"\u003e\n\u003ch2 data-start=\"2680\" data-end=\"2725\"\u003e\u003cstrong data-start=\"2683\" data-end=\"2725\"\u003eIdeal for Budget Builds \u0026amp; T1 Retention\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2727\" data-end=\"2755\"\u003eThis harness is perfect for:\u003c\/p\u003e\n\u003cul data-start=\"2756\" data-end=\"2963\"\u003e\n\u003cli data-start=\"2756\" data-end=\"2799\"\u003e\n\u003cp data-start=\"2758\" data-end=\"2799\"\u003eBudget-focused coil-on-plug conversions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2800\" data-end=\"2841\"\u003e\n\u003cp data-start=\"2802\" data-end=\"2841\"\u003eBuilds retaining a T1 ignition module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2842\" data-end=\"2900\"\u003e\n\u003cp data-start=\"2844\" data-end=\"2900\"\u003eStreet and track cars needing reliable ignition wiring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2901\" data-end=\"2963\"\u003e\n\u003cp data-start=\"2903\" data-end=\"2963\"\u003eCustomers not ready for a full custom mil-spec COP harness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2965\" data-end=\"3048\"\u003eIt delivers dependable performance while keeping cost and complexity under control.\u003c\/p\u003e\n\u003chr data-start=\"3050\" data-end=\"3053\"\u003e\n\u003ch2 data-start=\"3055\" data-end=\"3075\"\u003e\u003cstrong data-start=\"3058\" data-end=\"3075\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3077\" data-end=\"3252\"\u003eDesigned for Honda OBD1 ECU applications using a T1 ignition module and compatible coil-on-plug setups. Proper ECU configuration and tuning are required for correct operation.\u003c\/p\u003e\n\u003chr data-start=\"3254\" data-end=\"3257\"\u003e\n\u003ch2 data-start=\"3259\" data-end=\"3281\"\u003e\u003cstrong data-start=\"3262\" data-end=\"3281\"\u003eImportant Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3283\" data-end=\"3337\"\u003eThis product is intended for performance applications.\u003c\/p\u003e\n\u003cp data-start=\"3339\" data-end=\"3397\"\u003eProper ECU configuration and ignition tuning are required.\u003c\/p\u003e\n\u003cp data-start=\"3399\" data-end=\"3574\"\u003eThis harness is offered as a budget-tier solution and is not a replacement for a fully custom mil-spec COP system when advanced routing, shielding, or integration is required.\u003c\/p\u003e","brand":"VTI","offers":[{"title":"Default Title","offer_id":47175424573632,"sku":"COP-DT12-IF","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/7956\/1152\/files\/FFBF3A8F-E011-4721-A991-E65950AD6909.jpg?v=1770683794","url":"https:\/\/www.vtecinnovations.com\/products\/honda-t1-coil-on-plug-harness-obd1-ecu-cop-wiring","provider":"VTI","version":"1.0","type":"link"}