IDLE MIXTURE CHECK

2.Turn the ignition switch to the "LOCK" (OFF) position and then connect the M.U.T.-III to the diagnosis connector (Refer to GROUP 00 - Precautions Before Service, M.U.T.-III ).

3.Set the timing light to the timing pick-up loop (white) of No. 1 ignition coil. 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. note In higher altitude, the ignition timing is more advanced than the standard value by approximately 5°. note 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 13B - Troubleshooting - Inspection chart for trouble symptom ). 10.Remove the HC, CO tester and timing light. 11.Turn the ignition switch to the "LOCK" (OFF) position and then remove the M.U.T.-III.