Ignition Timing: Testing and Inspection

CAUTION: All Supplemental Restraint System (SRS) Wire Harnesses are covered with yellow insulation. Before you disconnect any part of an SRS wire harness, connect the short connectors.

WARNING: Whenever the Ignition Switch is "ON", or has been turned "OFF" for less than three minutes, be careful not to bump the SRS unit; the Airbags could accidentally deploy and cause damage or injuries. For additional precautions, refer to Airbag Arming/Disarming.

1. Start the Engine. Hold the Engine at 3,000 rpm with no load (Automatic Transmission (A/T) in N or P position, Manual Transmission (M/T) in neutral) until the Radiator Fan comes on, then let it idle.





2. Pull out the Service Check Connector located behind the Glove Box. Connect the GRN/BLU and RED Terminals with the SCS Service Connector.
3. Check the idle speed.





4. Connect a Timing Light to the No. 1 Ignition Wire. Point the light toward the Pointer on the Timing Belt Cover.





5. Adjust Ignition Timing, if necessary, to the following specifications:

Ignition Timing*: 15° ± 2° BTDC (RED) at 700 ± 50 rpm
*Shift Lever in neutral position (A/T: N or P position) and electrical systems turned off.





6. To adjust Ignition Timing, loosen the Distributor mounting Bolts, and turn the Distributor Ignition Housing counterclockwise to advance the Timing, or clockwise to retard the Timing.
7. Tighten the Adjusting Bolts, and recheck the Timing.
8. Remove the SCS Service Connector from the Service Check Connector.