are all 6 injectors powered by 1 wire and where in fuse box does it connect in 1990 pontiac grand prix?
Asked by migration_Ward Feb 05, 2012 at 06:53 PM about the 1990 Pontiac Grand Prix 4 Dr LE Sedan
Question type: Maintenance & Repair
need wiring info on injectors bother power and ground
3 Answers
pbjunkie86 answered 12 years ago
The injectors are powered at all times what makes the injector pulse is the ECU grounding the other wire out. If your looking for a fuse it should be marked EFI
pbjunkie86 answered 12 years ago
Your best bet is to get a set of noid lights from your local auto zone you can rent them for about 30 bucks. this will tell you if your injectors are getting power and if they are pulsing the way they should be.