Tune-Up Notes
NOTE:
When performing tune-up procedures described in this article, the following notes and precautions must be followed:
- Always refer to Engine Tune-Up Decal in engine compartment before tune-up. If manual and decal differ, always use decal specifications.
- With the exception of initial ignition timing, normal tune-up adjustments are not required. Perform adjustments only when indicated by the Computer Command Control (CCC) System Performance Check, CCC diagnostic charts and/or poor engine performance.
- Do not allow or create a condition of engine misfire in more than one cylinder for an extended period of time. Damage to catalytic converter may occur due to loading converter with unburned air/fuel mixture.
- Before making a compression test or cranking engine with a remote starting switch, disconnect ignition switch "BATT" terminal lead at distributor.
- Do not add cleaning agents to fuel system as they can damage the catalytic converter.
- Do not remove spark plug wires with engine running. HEI secondary voltage may inflict harmful electrical shock.
- Damage to HEI electronic module and/or ignition coil may result if "TACH" terminal in distributor cap connector is grounded.