Test Description
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 Pontiac Grand Prix, 2003 Pontiac Bonneville, 2003 Chevrolet Monte Carlo, 2003 Chevrolet Impala, and 2003 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number in the diagnostic procedures.
- 2
MAP sensor faults must e diagnosed first. A skewed MAP sensor reading could cause this DTC to set.