Ignition Timing: Adjustments
IGNITION TIMING ADJUSTMENTAdjustment conditions:
^ Engine coolant temperature: 85 - 95°C (185 - 203°F)
^ All accessories: OFF
^ Transmission in N (Neutral)
^ Parking Brake ON
Adjustment Procedures
1. Connect a timing light and tachometer.
2. Start the engine and check the curb idle speed.
Curb idle speed: 700 ± 100 rpm
NOTE: Do not use the scan tools. If tested with the scan tool connected to the data link connector, the ignition timing will not be the basic timing but be ordimary timing.
3. With the engine stopped, connect a lead wire alligator clips to the terminal for ignition-timing adjustment (located in the engine compartment), and ground it.
4. Start and run the engine at idle speed.
5. Check the basic ignition timing and adjust if necessary.
Basic ignition timing: 5 ± 2 BTDC
6. If the timing is incorrect, loosen the distributor's holding nut, and then turn the distributor until the timing is correct.
NOTE: The ignition timing will be advanced if the distributor is turned to the right and retarded if it is turned to the left.
7. After adjustment, tighten the mounting nut.
CAUTION: Be careful, when tightening the nut, that the distributor does not move.
8. Stop the engine.
9. Disconnect the lead wire connected at step 3.
10. Start and run the engine at idle speed.
11. Check that the ignition timing at idle is correct.
Ignition timing at idle: 15°BTDC