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ENGINE <6A1> -
On-vehicle Service
11B-7
9. Press the MUT-II clear key (Select a forced driving cancel
mode) to release the Actuator test.
Caution
If the test is not cancelled, a forced driving will
continue for 27 minutes. Driving under this condition
may damage the engine.
10. Check that ignition timing is at the standard value.
Standard value: approx. 7
_
BTDC
NOTE
1. Ignition timing is variable within about ± 7_, even
under normal operating.
2. And it is automatically further advanced by about
5_ from standard value at higher altitudes.
IDLE SPEED CHECK
11100350059
1. Before inspection, set the vehicle to the pre-inspection
condition.
2. Turn the ignition switch to OFF and connect the MUT-II
to the diagnosis connector.
3. Check the basic ignition timing. Adjust if necessary.
Standard value: 5
_
BTDC
±
3
_
4. Run the engine at idle for 2 minutes.
5. Check the idle speed. Select item No. 22 and take a
reading of the idle speed.
Curb idle speed: 650
±
100 r/min
NOTE
The idle speed is controlled automatically by the idle speed
control (ISC) system.
6. If the idle speed is outside the standard value, check
the MPI components by referring to GROUP 13A -
Troubleshooting.
IDLE MIXTURE CHECK
1110020401
1. Before inspection, set the vehicle to the pre-inspection
condition.
2. Turn the ignition switch to OFF and connect the MUT-II
to the diagnosis connector.
3. Check that the basic ignition timing is within the standard
value.
Standard value: 5
_
BTDC
±
3
_
4. Run the engine at 2,500 r/min for 2 minutes.