Ignition Timing: Adjustments

Adjustment Conditions

- Coolant temperature: 80 - 95° C (170 - 205° F)
- Lamps, cooling fan, and all accessories: Off
- Transaxle range: Neutral or "N" or "P" for A/T
- Parking brake: ON
- Steering wheel: Neutral position

Adjustment Procedures





1. Install a tachometer and a timing light.
2. Run the engine for more than 5 seconds at an engine speed of 2,000 to 3,000 rpm. Run the engine at idle for 2 minutes,
3. Read the idling rpm. If it is not within the specified value, check the idle speed control system.

Idle speed: 750 ± 100 rpm

NOTE: Do not use the scan tool. If tested with the scan tool connected to the data link connector, the ignition timing will not be the basic timing, but be ordinary timing. The engine speed indicated is a second of actual speed. In other words, the reading of the tachometer times 2 is actual speed.








4. Ground the ignition timing adjustment terminal. Wire is light green with a red stripe.





5. Check the basic ignition timing.

Basic ignition timing: 5 ± 2° BTDC at idle





6. If the timing is incorrect, loosen the crankshaft/camshaft position sensor mounting nut, and rotate the crankshaft/camshaft position sensor until the timing is correct.

NOTE: The ignition timing will be retarded if the crankshaft/camshaft position sensor is turned to the left and advanced if it is turned to the right

7. After adjustment, securely tighten the mounting nut.

Tightening torque: 1O - 13 Nm (7 - 9 ft lb)

NOTE: Be careful, when tightening the nut, that the crankshaft/camshaft position sensor does not move.

8. Stop the engine.
9. Disconnect the lead wire connected at step 4.
10. Start and run the engine at curb idle speed.
11. Check to be sure that the idling ignition timing is the correct timing.

Actual ignition timing: 8° BTDC

NOTE:
- Actual ignition timing may vary, depending on the control mode of the engine control module. In such a case, recheck the basic ignition timing. If there is no deviation, the ignition timing is functioning normally.
- At high altitudes more than approximately 2,300 ft above sea level, the actual ignition timing is farther advanced to ensure good combustion.