Operation CHARM: Car repair manuals for everyone.

Ignition Timing: Adjustments

1. Apply parking brake and make sure vehicle is in PARK (A/T) or NEUTRAL (M/T).
2. Warm engine to operating temperature.
3. Turn OFF all electrical loads and accessories.
4. Connect timing light.

Idle Speed Adjustment:






5. Using a jumper wire, connect GND and STI terminals of diagnosis connector.

IG Terminal:






6. Connect tachometer positive lead to diagnosis connector IG terminal and negative lead to the negative battery post. Check idle speed and adjust if necessary.

Crankshaft Pulley:






7. Inspect ignition timing.

Distributor Bolt:






8. If marks are not aligned, loosen mounting bolts and turn distributor until timing is set at 10° ± 1° BTDC.
9. Tighten mounting bolts to 14 - 19 ft lb (19 - 25 Nm).
10. Remove jumper wire from diagnosis connector.
11. Remove timing light and tachometer.