Buick Pangtouyu 3.0 Fault p0 175

This fault code will appear if the adaptive fuel control system has reached the compensation limit and the air-fuel ratio is still too rich.

Causes of failure include intake air flow sensor or manifold absolute pressure (MAP) sensor failure, high fuel pressure, fuel pressure regulator failure, fuel injector failure, oxygen sensor failure, camshaft timing error, oil spill, evaporative emission system error, electronic control module (PCM or ECM) failure, etc.