Does anyone have the Powertrain Control/Emissions Diagnosis Manual? The service manual refers to this for diagnosing the fuel charging and control system.
I'm trying to figure out if this is normal: With my fuel pressure gauge attached, I see a spike to 39psi when the pump engages during key on, but then falls to 35psi when it shuts down after 1-2 seconds.
With the car running, fuel pressure is around 28psi, which I think is WAY too low. A blip of the throttle gives a spike up to around 40psi, but immedately falls back to 28. If I gradually raise rpms, fuel pressure stays at 28psi.
Also, what kind of voltages are to be expected at the fuel pump? I am trying to determine if there is a problem with the pump or if this is all normal. HELP!
-Lance
Lance Kinley
CEG Webmaster
95SE, "Official CEG Beater"
Quaife, SVT parts, ST200 wheels, SS Y-pipe
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