{"product_id":"holley-efi-ford-foxbody-main-harness-558-128","title":"Holley EFI Ford Foxbody Main Harness - 558-128","description":"This 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. 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.\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for use with fuel injected small block ford engines\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\u003eComes pre-terminated with Ford PWM IAC connector for OEM PWM - idle air control motors\u003c\/li\u003e\n\u003cli\u003eFor OEM Ford fuel injectors, use injector harness 558-209\u003c\/li\u003e\n\u003cli\u003eFor TFI distributor applications, use ignition adapter 558-305\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details:\u003c\/strong\u003e Plug and Play with fuel injected 5.0L Small Block Ford Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Main\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Engine Wiring Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e 5.0L Ford Main Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Pin\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cp\u003eThe following guide overviews all connections on the main harness. The 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\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":49715483934958,"sku":"HLY-558-128","price":584.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9110\/6798\/files\/94715d8aec657dd1581c7288ddc97be0e5df6767.jpg?v=1791569197","url":"https:\/\/elmosspeedshop.com\/products\/holley-efi-ford-foxbody-main-harness-558-128","provider":"Elmo's Speed Shop","version":"1.0","type":"link"}