Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 417

13A-58
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.13A-79.)
MUT-II Data list
26 Accelerator pedal position switch (Refer to P.13A-76.)
Clean around the throttle valve. (Refer to P.13A-96.)
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:
Spark plug
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
Malfunction of the electronic-controlled throttle valve
system
Yes
(Refer to P.13A-13, INSPECTION CHART FOR DIAGNOSIS
CODES.)
NG
Check the throttle valve position feedback system. (Refer to
P.13A-36, INSPECTION PROCEDURE FOR DIAGNOSIS CODE
92.)
NG
Check the accelerator pedal position switch system. (Refer to
P.13A-67, INSPECTION PROCEDURE 28.)
Probable cause
Malfunction of the detonation sensor
Improper heat range of the spark plugs
Yes
(Refer to P.13A-13, INSPECTION CHART FOR DIAGNOSIS
CODES.)
No
Check the detonation sensor system. (Refer to P.13A-23, INSPEC-
TION PROCEDURE FOR DIAGNOSIS CODE 31.)
Probable cause
Malfunction of the injector