Chosen Solution
I asked local dealer what P0090 was and he said he`d never seen it. Seems to run OK. Thanks in advance
Neal Dameron, find a new dealer:-) P0090 - Fuel Pressure Regulator 1 Control Circuit, it controls the vacuum to the fuel pressure regulator. POSSIBLE CAUSE PRC solenoid valve malfunction Connector or terminal malfunction Short to ground in wiring between PRC solenoid valve terminal B and PCM terminal 95 Open circuit in wiring between main relay terminal D and PRC solenoid valve terminal A Open circuit in wiring between PRC solenoid valve terminal B and PCM terminal 95 Short to power circuit between PRC solenoid valve terminal B and PCM terminal 95 PCM malfunction
