Mitsubishi FUEL Manual page 277

INSPECTION PROCEDURE 15
The feeling of impact when decelerating
The cause is probably insufficient intake air due to a faulty electronic-controlled throttle
valve system.
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 Data list
26 Accelerator pedal position switch (Refer to P.13I-98.)
Clean around the throttle valve. (Refer to P.13I-98*.)
NOTE:
*: Refer to the '99 GALANT Workshop Manual (Pub. No. PWDE9611-A)
INSPECTION PROCEDURE 16
Knocking
The cause is probably incorrect detonation control or improper heat range of the
spark plugs.
MUT-II Self-Diag code
Is a diagnosis code displayed?
Does knocking occur when the vehicle is driven with the detonation
sensor disconnected?
(At this time, use the MUT-II to check whether the ignition timing
is retarded from when the detonation sensor connector is con-
nected.)
Check all the following items:
D Spark plug
D Foreign material (such as water or kerosine) entered the fuel
lines
INSPECTION PROCEDURE 17
Run-on (dieseling)
The cause is probably fuel leak from injector(s)
Replace the injector.
GDI -
No
OK
OK
No
Yes
Troubleshooting
Probable cause
D Malfunction of the electronic-controlled throttle valve
system
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 accelerator pedal position switch system.
(Refer to P.13I-93, INSPECTION PROCEDURE 29.)
Probable cause
D Malfunction of the detonation sensor
D Improper heat range of the spark plugs
Yes
(Refer to P.13I-11, INSPECTION CHART FOR DIAGNOSIS
CODES.)
No
Check the detonation sensor system. (Refer to P.13I-47, INSPEC-
TION PROCEDURE FOR DIAGNOSIS CODE P0325.)
Probable cause
D Malfunction of the injector
13I-83