IDLE MIXTURE CHECK <EURO4>

1.Before inspection, set the vehicle to the pre-inspection condition. 2.Turn the ignition switch to the "LOCK" (OFF) position and then connect the M.U.T.-III to the diagnosis connector.

3.Set the timing light to the terminal No. 3 power supply line (white) of the ignition coil No. 1. 4.Start the engine and let it run at idle. 5.Check that ignition timing is at the standard value. Standard value: approximately 10° BTDC note The ignition timing may fluctuate within ± 7°. This is normal. In higher altitude, the ignition timing is more advanced than the standard value by approximately 5°. Wait till approximately 1 minute passes after the engine started, and check the ignition timing when the engine stabilized. 6.Run the engine at 2,000 - 3,000 r/min for 2 minutes. 7.Set the CO, HC tester. 8.Check the CO contents and the HC contents at idle. Standard value CO contents: 0.3% or less HC contents: 200 ppm or less 9.If there is a deviation from the standard value, inspect the MPI system (Refer to GROUP 13A - Troubleshooting - Inspection Chart for Trouble Symptoms ). 10.Remove the timing light. 11.Turn the ignition switch to the "LOCK" (OFF) position and then disconnect the M.U.T.-III.