Operation CHARM: Car repair manuals for everyone.

Ignition Timing: Testing and Inspection

A: INSPECTION

CAUTION: After warming-up, engine becomes very hot. Be careful not to burn yourself during measurement.

1. Warm-up the engine.
2. To check the ignition timing, connect a timing light to #1 cylinder spark plug cord, and illuminate the timing mark with the timing light.





3. Start the engine at idle speed and check the ignition timing.
Ignition timing [BTDC/rpm]:
MT vehicle: 10° ±8°/650
AT vehicle: 15° ±8°/700
If the timing is not correct, check the ignition control system.
Refer to Engine Control System. Refer to Powertrain Management; Fuel Delivery and Air Induction.