how do i fix error code p0102

Question

i'ved changed the mas air flow sensor, the air filter, and pvc valve.

Answer 1

Hi there

You need to check the wiring from the mass air flow sensor back to the pcm, also check it for power and ground. If the wiring is bad, replacing the sensor won't help. I have seen times where the harness connector is the fault, it's maybe not making good contact on the maf sensor.