Ignition Timing Check - Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement

11A-10
No.1 ignition coil
Idle speed r/min
900
800
700
600
–10
20
Transmission oil temperature C
ENGINE <4G9> –

IGNITION TIMING CHECK

1. Before inspection, set the vehicle to the pre-inspection
2. Turn off the ignition switch and then connect the MUT-II
3. Set the timing light to the power supply line (terminal No.1)
4. Start the engine and let it run at idle.
5. Use the MUT-II to measure engine idle speed and check
50
6. Select No.17 of the MUT-II Actuator test.
7. Check that basic ignition timing is within the standard value.
8. If the basic ignition timing is outside the standard value,
9. Press the MUT-II clear key (Select a forced driving cancel
10. Check that ignition timing is at the standard value.
11. Remove the timing light.
12. Turn off the ignition switch and then remove the MUT-II.
On-vehicle Service
condition.
to the diagnosis connector.
of the ignition coil No.1.
NOTE
The power supply line is looped and also longer than
the other ones.
that it is within the standard value.
Standard value: 600
NOTE
(1) *: The idle speed in vehicles with manual transmission
varies in accordance with the transmission oil
temperature.
(2) After 4 minutes or more have passed in the idle running
condition, the idle speed will become 750 r/min.
NOTE
At this time, the engine speed will become approximately
750 r/min.
Standard value: 5 BTDC
inspect the GDI system while referring to GROUP 13A
– Troubleshooting.
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.
Standard value: approx. 16 BTDC
NOTE
(1) The ignition timing will become approximately 6 BTDC
after more than 4 minutes have passed since the basic
ignition timing set mode was released.
(2) The ignition timing may fluctuate within
This is nomral.
(3) In higher altitude, the ignition timing is more advanced
than the standard value by approximately 5 degree.
100 r/min*
3
7 BTDC.