H3 Hummer reduce engine power fix

Описание

2006 Hummer H3 that was throwing several CEL codes and running rough, it was also going into reduced engine power mode.

Some of the codes we got were P0651, C0240 and p0335.

We tried replacing the Throttle position sensor, the accelerator pedal position sensor, the mass airflow sensor, the crankshaft position sensor and even put a new ECM.

The problem was intermittent but I was finally able to trace it down to either a bad wire or faulty connector.