Hi i know there is something out there but i cant find what i am looking for but i am going to do a efi swap in my maverick. I have computer, wire harness, upper and lower intake with fuel rail and injetors, injector harness, i know i need to get a efi gas tank. What eles would i need like from a doner car? Will i need the fues block from fox? What do i need off engine bay firewall?
I'm 99% there is no fuses that power the EFI(I know there wasn't through at least '88)... Power is from ign switch that's powered from a fuse link directly from battery... You really should get a wiring diagram(EVTM in Ford speak) for the year of your harness, starting '90 the air bag system is integrated into the main harness that somewhat complicates hookup... On the earlier ones powering the red/ Lt Green wire to ECM relay powers the system and assuming grounds are in place, fuel pump connected etc, the engine will start when cranked... You'll need lots of little things like EFI throttle cable, the oxygen sensors that are in H-pipe(and won't fit a Mav/Comet, at least without cutting), mass air meter etc...
BTW assuming you have Mustang parts, you'll need a cam to match the 13726548 firing order of the 5.0 HO... If you want to stay stock engine, you'll need the ECM, & injectors from a T-Bird, Grand Marquis, etc that has the std 15426378 firing order... Those injectors are smaller than the Stang units...
