Originally posted by Big Jim:
Does the fuel pressure actually drop? Did you install a fuel pressure gauge and drive it?

If you are indeed losing fuel pressure it would most likely be a bad fuel pump. Since fuel pressure on a good pump is controlled by the PCM and fuel pump controller, they are posibilities too, but not nearly as common.




Yes, i have a fuel PSI gage on the car right now, it only does it when i have less then 3/4, 1/2 a tank of gas and only a WOT. The fuel PSI drops off to nothing when at WOT, and i can't hear the pump running. Where is this Fuel Pump Controller located at in the car, I think i want to check it.

Thanks

Zintac