[11A] ENGINE MECHANICAL <4G6-SOHC> - - ON-VEHICLE SERVICE - IGNITION TIMING CHECK | PRINT PAGE / INDEX / PRIOR / NEXT

| 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. Connect a timing light. 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: 750 ± 100 r/min <4G63> 700 ± 100 r/min <4G64> 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 13A - Troubleshooting - Inspection chart for diagnosis code <4G63> or GROUP 13B - Troubleshooting - Inspection chart for diagnosis code <4G64> ). 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 off the ignition switch and then remove the MUT-II/III.

[11A] ENGINE MECHANICAL <4G6-SOHC> - - ON-VEHICLE SERVICE - IGNITION TIMING CHECK | PRINT PAGE / INDEX / PRIOR / NEXT

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