2003 GMC Sierra 1500 "efi" Questions

...warning lights come on , except the check engine soon Key on should energise fuses Fuel pump and

oxygen sensors I have a GMC sierra 1500 HD 2wd. I am try to wire in some EFIE's into my oxygen sensors to allow my hydrogen generator work on my truck. I need to know which of the four wires on my ...

...fuel pressure regulator. Fuel pressure is running 50 PSI. Needs a valve adjustment. I assume its EFI, eliminating the possibility of the

where do u hook up to Diagnostic you dont the French Renix system (EFI) has not, its a SLICK EFI. (smart as a brick) google REnix EFI and see. Slick as in No smarts. its just a raw EFI controller, ...

je89 ignition low volts to coil 1989 Jeep Cherokee (i had an 88) for 250k miles. is this the EFI engine , 4.0L I6?, what country? if yes, it has the old funky Renix Bendix EFI. never seen an after ...

what is the EFI fuse on a toyota camry whats the function of a EFI fuse It supplies the EFI Main relay, which in turn powers the fuel pump, ignition switch, and starter relay. In addition it powers ...

efi makes buzzing noise Been having trouble getting my camry to start. First thought i had was the battery was dead. But When I try jump starting the car it makes this loud buzzing noise that seems to

...times same question all 3 times no engine stated sorry we can not every guess engines here. and the EFI wiring is not same on any. nor if in canada, calif or USA FED. cant guess your country or state ...

need the vacuum diagram for the 1978 425 EFI cadillac engine Vacuum circuits - 1979 Seville with 5.7L engine Fed. (EFI) Vacuum circuits - 1979 Seville with 5.7L engine Calif. (EFI) Hope this help ...

engine wont start,efi 15amp fuse keeps blowing EFI (electronic fuel injection) is a nasty fuse to blow. Unplug EFI module for 5 minutes. Plug it back in and try to start it immediately to confirm a ...