)
)
- Before inspection, set the vehicle to the pre-inspection condition.
- Turn the ignition switch to "LOCK" (OFF) position.
- Connect the MUT-II/III to the diagnosis connector or connect a tachometer to the engine speed detection connector.
- Connect a timing light.
)
- Start the engine and let it run at idle.
- Check that ignition timing is at the standard value.
Standard value: approximately 10°
BTDC
- Check the idle speed.
- The idle speed is controlled automatically by the idle speed control system.
- When using the, MUT-II/III select item No. 22 and take a reading of the idle speed.
Standard value: 700 ±
100 r/min
NOTE:
- If the idle speed is outside the standard value, inspect the MPI system (Refer to
GROUP 13B -
Troubleshooting -
Inspection chart for diagnosis code
).
- Set the CO tester.
- Check the CO contents at idle.
Standard value: 1.5 ±
0.5%
)
- If there is deviation from the standard value, set the idle mixture to the specified value
by adjusting the mixture adjusting screw (variable resister).
Use the special tool MAS screwdriver (MD998299) to turn the mixture adjusting screw.