Regarding the trouble shooting tests:
1. Everything checks out ok.
2. Fuel Pressure at idle = 32PSI; @ 2500 RPM = 32PSI (Spec is 27.5 to 33.5 w/Vaccum connected) (There is about a 6 PSI rise when I step on the accelerator quickly.)
3. Engine off cycle 4 times fuel pump pressure = 38 - 40 PSI;
Fuel Pressure drop with engine off after 1 minute = 12 PSI.
Recommends checking the Pressure Regulator and Fuel Injectors for leakage. The Pressure Regulator is new and there is no leakage from it. I do not know how to test the Fuel Injectors for leakage?
Friday, October 26th, 2012 AT 1:56 AM