Mitsubishi FUEL Manual page 269

INSPECTION PROCEDURE 8
Idle speed is high or low (Improper idling)
The cause is probably that the intake air amount during idling is too great or too
small.
MUT-II Self-Diag code
Is a diagnosis code displayed?
MUT-II Data list
79 Throttle position sensor (1st channel) (Refer to P.13I-98.)
MUT-II Actuator test
08 Purge control solenoid valve (Refer to P.13I-104.)
MUT-II Data list
26 Accelerator pedal position switch (Refer to P.13I-98.)
MUT-II Data list
21 Engine coolant temperature sensor (Refer to P.13I-98.)
MUT-II Data list
28 A/C switch (Refer to P.13I-98.)
MUT-II Data list
48 M/T oil temperature sensor (Refer to P.13I-98.)
MUT-II Data list
67 Stop lamp switch (Refer to P.13I-98.)
D Clean around the throttle valve. (Refer to P.13I-98*.)
D Adjust the throttle position sensor. (Refer to P.13I-98*.)
NOTE:
*: Refer to the '99 GALANT Workshop Manual (Pub. No. PWDE9611-A)
GDI -
No
OK
OK
OK
OK
OK
OK
OK
Troubleshooting
Probable cause
D Malfunction of the electronic-controlled throttle valve
system
D Malfunction of the throttle body
Yes
(Refer to P.13I-11, INSPECTION CHART FOR DIAGNOSIS
CODES.)
NG
Check the throttle valve position feedback system.
(Refer to P.13I-57, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE P1221.)
NG
Check the purge control solenoidvalve. (Refer to P.13I-54, INSPEC-
TION PROCEDURE FOR DIAGNOSIS CODE P0443.)
NG
Check the accelerator pedal position switch system.
(Refer to P.13I-93, INSPECTION PROCEDURE 29.)
NG
Check the engine coolant temperature sensor. (Refer to P.13I-18,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE P0115.)
NG
Check the A/C switch and A/C relay system.
(Refer to P.13I-95, INSPECTION PROCEDURE 32.)
NG
Check the M/T oil temperature sensor.
(Refer to P.13I-96, INSPECTION PROCEDURE 33.)
NG
Check the stop lamp switch system.
(Refer to P.13I-97, INSPECTION PROCEDURE 34.)
13I-75