Test Description

The numbers below refer to step numbers in diagnostic procedure.

1. 4
   
   Repair cause of malfunctioning spark plugs before replacing.
2. 5
   
   Inspect for basic engine malfunction like low compression, burnt valves, worn timing chain and worn gears, etc.
3. 18
   
   Any time CKP sensor is removed crankshaft position variation learn procedure must be performed.
4. 22
   
   Replacement PCM must be reprogrammed and CKP system variation learn procedure must be performed.