Mitsubishi MOTORS Space Runner 1998, Workshop Manual

Page: 215 / 1164

GDI <4G6> -
On-vehicle Service
13A-97
ON-VEHICLE SERVICE
Caution
(1) Never attempt to tamper the fixed SAS. The fixed SAS
is precisely adjusted at factory.
(2) Should it be tampered, the full closed position of the
throttle valve will be changed. This causes the
engine-ECU to learn a wrong position of the throttle
valve.
THROTTLE BODY (THROTTLE VALVE ARE)
CLEANING
1. Start the engine, and warm it up until engine coolant
temperature reaches 80 _ C. Then stop the engine.
2. Remove the air intake hose at the throttle body side.
3. Apply cleaning agent to the throttle valve through the
intake port of the throttle valve, and then leave it for
approx. five minutes.
4. Start the engine, race it several times, and then let it
run at idle for approx. one minute.
5. If carbon deposits are not removed from the throttle vale
area, repeat steps (3) and (4).
6. Install the air intake hose.
7. Use the MUT-
II
or disconnect the negative battery cable
from the battery terminal in order to erase a diagnosis
code. Wait for at least ten seconds, and then let the
engine run at idle again for approx. ten minutes.
THROTTLE POSITION SENSOR ADJUSTMENT
1. Connect the MUT-
II
to the diagnosis connector.
2. Disconnect the throttle valve control servo connector.
3. Turn the ignition switch to ON (but do not start the engine).
4. Check the output voltage of the throttle position sensor
(1st channel) when the throttle valve is fully closed by
your finger.
Standard value: 0.4 - 0.6 V
5. If not within the standard value, loosen the throttle position
sensor mounting bolts. Then rotate the sensor body to
adjust.
Fixed SAS
Equipment side connector
Throttle position sensor
Intake
manifold