Diagnostic Aids
WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
- Fuel contamination, such as water or alcohol will effect fuel trim.
- A malfunctioning mass air flow sensor can cause a rich condition and set this DTC. Refer to DTC P0101 (With Throttle Actuator Control) .
- Use a scan tool in order to review Failure Records. If an intermittent condition is suspected, refer to Intermittent Conditions .