Test Description
WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The number below refer to the step number on the diagnostic procedure.
- 5
The misfire is considered random on all cylinders if, while viewing the misfire counters in the misfire data list, the misfire seems to move to different cylinders. - 6
The misfire is considered consistent if the misfire is occurring on the same cylinders consistently. - 7
When checking the spark at the spark plug wires, the spark should be consistent. A few sparks then nothing, is no spark.