Hey guys, you can probably figure this out in like 3 seconds. For some reason when i dirve my car im having leaning issues sometimes at 55% throttle which is right before boost pressure hits. and I cant figure it out. I read the post the erikseven had a bit ago where he had issues with his as well. Then realized that i had a leak at the primary injector so i fixed that and it still causes issues.

Next I tested voltage to the pump and cut the Green/Red Wire for the relay so the pump would see 12 v all the time, and as i was driving I got between 10-12 v in first gear, then shifted to second...same, then i had to stop then at idle i was reading 8 volts, then i shifted into gear and gave it some more throttle bout 40 % then it dropped down to 6 v, then shifted again into second same, then 3rd at 55% throttle right before boost and i was getting .16 v for some odd reason which is equivalent to fuel cut i guess and the motor was bucking and stuff so i immediately shut down and proceed to driving it regularly at cruise. the whole way back i was reading .16 but the afrs were bouncing around like it does during closed loop.

I have yet to clean my grounds, Fuel filter is only 2000 miles old. Alternator and battery are great.....13volts when idling. and injectors have been cleaned.

Any idea whats going on?

 

This doesn't make any sense...
I haven't messed with the stock fuel pump wiring in a long time, but IIRC, if you start to cut any of the wires, the power defaults to the lower voltage level.

How did you manage to cut one wire and have it stuck on full voltage?

You really need to rewire everything, as that stock fuel pump resistor relay system SUCKS!
I posted pics of my corroded wiring and faulty relay a few years ago in another thread.
Throw that **** away!


-Ted