Ignition Timing: Adjustments

IGNITION TIMING ADJUSTMENT
Refer to the Vehicle Emission Control Information Label located in the engine compartment. Follow all instructions on the label.

PROCEDURE
1. With the ignition "OFF," connect the pick-up lead of the timing light to the number one spark plug. Use a jumper lead between the wire and plug, or an inductive type pick-up. DO NOT pierce the wire, or attempt to insert a wire between the boot and spark plug.

2. Connect the timing light power leads according to the manufacturers instructions.

3. Jumper pins A and B at the Assembly Line Diagnostic Link (ALDL) connector while NOT in diagnostic mode.

4. START the engine and aim the timing light at the timing mark. The line on the pulley should line up at the timing mark. If a change is necessary, loosen the distributor hold-down clamp bolt at the base of the distributor. While observing the mark with the timing light, slightly rotate the distributor until the line indicates the correct timing. Tighten the hold down bolt to 34 Nm (25 lb ft) and recheck the timing.

5. Turn "OFF" the engine. Remove timing light and jumper at the ALDL connector.

6. Reconnect number one spark plug wire, if removed.