I had the Idle Air Control Valve replaced and The Mass Air Flow sensor replaced. I’ll try to clean up the harness and the pins first and hope that fixes the problem.
I replaced the connector but it didn’t fix the problem. I took off the connector for the ecu and it has corrosion. I’ll try cleaning this off but I’ll need help identifying the wires for the connector on the ecu.
I got 3 engine codes codes 121 157 185. My car sometimes has a bad idle, I had mass air flow sensor and idle control valve changed. Can it be the throttle position sensor that can make those codes? Is there a way to check? Thank you.