Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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.

Self Test Input Connector:






5. Using a jumper wire, ground black 1-pin STI self test connector located near brake master cylinder.
6. Check and adjust idle speed if necessary.

Timing Mark Reference:






7. Inspect ignition timing.

Timing Adjustment Procedure:






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 - 18 ft lb (20 - 30 Nm).
10. Remove jumper wire from diagnosis connector.
11. Remove timing light and tachometer.