Ignition Timing: Adjustments

PREPARATION
1. Check engine condition (spark plugs, leaks in hoses, etc.).
2. Turn all accessories "OFF."
3. Warm engine to operating temperature.
4. Connect a tachometer and timing light to engine.


ADJUSTMENT

Diagnostic Connector:

1. Bridge "TEN" and "GND" terminals of data link connector with jumper wire.
2. Check that idle speed is within specification. If not, correct as needed.

IDLE SPEED: 700 ± 20 rpm ("P" range)

Timing Marks:

3. Check that timing mark (Yellow) on crankshaft pulley and mark on timing belt cover are aligned to specification:

TIMING: 12° ± 1° BTDC

Adjusting Ignition Base Timing:

4. If timing is not within specification, loosen distributor lock bolt and rotate distributor housing to adjust.
5. Tighten distributor lock bolt to 14 - 18 ft.lb (19 - 25 Nm).
6. After adjustment, remove jumper wire from data link connector.