Eighth generation of the Mazda Protege.

44 Questions View all

mil on, dtc P0090, whats that?

I asked local dealer what P0090 was and he said he`d never seen it. Seems to run OK. Thanks in advance

Answer this question I have this problem too

Is this a good question?

Score 1
Add a comment
Black Friday
Broken doesn't stand a chance.

1 Answer

Most Helpful Answer

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

Was this answer helpful?

Score 1
Add a comment

Add your answer

Neal Dameron will be eternally grateful.
View Statistics:

Past 24 Hours: 1

Past 7 Days: 3

Past 30 Days: 32

All Time: 2,354