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1.Before inspection, set the
vehicle to the pre-inspection condition.
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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 (Refer to GROUP 00 -
Precautions Before Service, M.U.T.-III ).
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![](../../../img/11/ACF01013AB00ENG.png)
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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.
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note |
In higher altitude, the
ignition timing is more advanced than the
standard value by approximately
5°.
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note |
Wait till approximately 1
minute passes after the engine started, and
check the ignition
timing when the engine stabilized.
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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.
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