Ignition System (Code 21)
- Disconnect high tension cable from one spark plug and check hot spark during cranking. If okay, test is complete. If no good, perform EFI self-diagnosis.
- If self-diagnosis is okay, check distributor, ignition coil and high tension cable and repair or replace if necessary. If okay, replace IC ignition unit.
- If self-diagnosis was no good, check harness and repair if necessary. If okay, replace IC ignition unit and return to step 1).