IGNITION TIMING CHECK

Set the timing light to the power supply line (terminal No. 1) of the ignition coil No. 1.

NOTE: The power supply line is looped and also longer than the other ones.

Use the MUT-II/III to measure engine idle speed and check that it is within the standard value.

Standard value

Standard value: 5° BTDC ± 3°

If the basic ignition timing is outside the standard value, inspect the MPI system (Refer to , GROUP 13C - Troubleshooting - Inspection chart for diagnosis code).

CAUTION

If the test is not cancelled, a forced driving will continue for 27 minutes. Driving under this condition may damage the engine.

Standard value: approximately 10° BTDC

NOTE:

In higher altitude, the ignition timing is more advanced than the standard value by approximately 5°.

Turn the ignition switch to the "LOCK" (OFF) position and then remove the MUT-II/III.


	IGNITION TIMING CHECK
	Before inspection, set the vehicle to the pre-inspection condition. Turn the ignition switch to the "LOCK" (OFF) position and then connect the MUT-II/III to the diagnosis connector.
	Set the timing light to the power supply line (terminal No. 1) of the ignition coil No. 1. NOTE: The power supply line is looped and also longer than the other ones. Start the engine and let it run at idle. Use the MUT-II/III to measure engine idle speed and check that it is within the standard value. Standard value : 680 ± 100 r/min Select No. 17 of the MUT-II/III Actuator test. Check that basic ignition timing is within the standard value. Standard value: 5° BTDC ± 3° If the basic ignition timing is outside the standard value, inspect the MPI system (Refer to , GROUP 13C - Troubleshooting - Inspection chart for diagnosis code). CAUTION If the test is not cancelled, a forced driving will continue for 27 minutes. Driving under this condition may damage the engine. Select a forced driving cancel mode to release the Actuator test. Check that ignition timing is at the standard value. Standard value: approximately 10° BTDC NOTE: The ignition timing may fluctuate within ± 7° BTDC. This is normal. In higher altitude, the ignition timing is more advanced than the standard value by approximately 5°. Remove the timing light. Turn the ignition switch to the "LOCK" (OFF) position and then remove the MUT-II/III.