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1.Before inspection, set the
vehicle to the pre-inspection condition.
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![](../../../img/11/AC608423AC00ENG.png)
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2.Turn the ignition switch
to the "LOCK" (OFF) position and then connect the M.U.T.-III
to the diagnosis connector.
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![](../../../img/11/AK602718AC00ENG.png)
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3.Set a timing light to the
power supply line (terminal No. 3) of the ignition coil No.
1. 4.Start the engine and let it run at
idle. 5.Select item No. 02 on the M.U.T.-III to
measure engine idle speed and check that it
is approximately 700 r/min. 6.Select item No. 11
(actuator test function) on the M.U.T.-III, and set the
ignition
timing to the basic ignition timing. 7.Check that
basic ignition timing is within the standard
value. Standard value: 5° BTDC ±
3° 8.If the basic ignition timing is
outside the standard value, inspect the MPI system
(Refer to GROUP 13A - Troubleshooting -
Inspection chart for diagnosis code ).
caution |
If the test is not cancelled,
a forced driving will continue for
27 minutes. Driving under this condition may
damage the engine.
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9.Press the M.U.T.-III clear key (Select a
forced driving cancel mode) to release the
Actuator test. 10.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°.
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11.Remove the timing light. 12.Turn
the ignition switch to the "LOCK" (OFF) position and then
disconnect the M.U.T.-III.
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