{"product_id":"5-0l-ford-engine-main-harness-558-128","title":"5.0L Ford Foxbody EFI Main Harness 558-128","description":"\u003cp\u003eThis harness is for fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor powerplants. Plug and play ignition capability with Dual Sync and HyperSpark Distributors, ignition adapter 558-305 is required for applications with a TFI distributor. The 5.0L Ford main harness is pre-terminated with Ford PWM IAC connector, for the OEM PWM - idle air control motor commonly found on late 80's and early 90's engines. Compatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU's.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for use with fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor powerplants.\u003c\/li\u003e\n\u003cli\u003ePlug and play ignition capability with Dual Sync and HyperSpark Distributors, for ignition adapter 558-305 is required for applications with a TFI distributor\u003c\/li\u003e\n\u003cli\u003eCompatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU’s\u003c\/li\u003e\n\u003cli\u003eComes pre-terminated with Ford PWM IAC connector, for OEM PWM – idle air control motors\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFor use with OEM Ford fuel injectors, use injector harness 558-209.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFor TFI distributor applications, use ignition adapter 558-305\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecs:\u003c\/h3\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolley EFI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmission Code\u003c\/th\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade Type\u003c\/th\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHarness Application\u003c\/th\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHarness Type\u003c\/th\u003e\n\u003ctd\u003eMain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003e5.0L Ford Main Harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarning\u003c\/th\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e558-128\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eApplication:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eNOT INTENDED AS AN OEM REPLACEMENT!\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFuel injected small block ford engines, such as 5.0L, or 5.8L Windsor\u003c\/li\u003e\n\u003cli\u003ePlug and play ignition capability with Dual Sync and HyperSpark Distributors\u003c\/li\u003e\n\u003cli\u003eCompatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU's\u003c\/li\u003e\n\u003cli\u003eFor use with OEM Ford fuel injectors, use injector harness 558-209\u003c\/li\u003e\n\u003cli\u003eIgnition adapter 558-305 is required for applications with a TFI distributor\u003c\/li\u003e\n\u003cli\u003eThe main harness supports all the primary engine sensors, fuel and ignition for eight cylinder engines, the #1 wideband oxygen sensor, and the first four programmable input and output channels. There are two connectors for this harness designated as “J1A” (pin designations below that start with an A) and “J1B” (pin designations below that start with a B).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":50201170411733,"sku":"558-128","price":505.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2493\/0960\/files\/5-0l-ford-engine-main-harness-558-128-modern-day-muffler-1.jpg?v=1738933075","url":"https:\/\/moderndaymuffler.com\/products\/5-0l-ford-engine-main-harness-558-128","provider":"Modern Day Muffler","version":"1.0","type":"link"}