Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 101

13D-36
INSPECTION PROCEDURE 11
When the engine is cold, it stalls at idling. (Die out)
In such cases as the above, the cause is probably that the air/fuel mixture is inappropriate
when the engine is cold, or that the intake air volume is insufficient.
Were the battery terminals disconnected?
MUT-II Self-Diag code
Are diagnosis codes displayed?
Does the engine stall right after the accelerator pedal is released?
Is engine-idling stable after the warming-up?
Check the ISC servo for operation sound. (Refer to P.13D-91.)
Check the injector for operation sound.
MUT-II Data list
26 Idle position switch (Refer to P.13D-60.)
MUT-II Data list
21 Engine coolant temperature sensor (Refer to P.13D-59.)
MUT-II Actuator test
10 EGR control solenoid valve (Refer to P.13D-62.)
Check the fuel pressure. (Refer to P.13D-82.)
Check the ignition timing.
(Refer to GROUP 11A - On-vehicle Service.)
Check the following items.
D Check the ignition coil, spark plugs, spark plug cables.
D Check the compression pressure.
D Check the engine oil viscosity.
MPI -
No
No
No
Yes
OK
OK
OK
OK
OK
OK
OK
Troubleshooting
Probable cause
D Malfunction of the ISC servo system
D Malfunction of the throttle body
D Malfunction of the injector system
D Malfunction of the ignition system
Yes
After warming-up, let the engine run at idling for 10 minutes.
Yes
Refer to P.13D-11, INSPECTION CHART FOR DIAGNOSIS
CODES.
Yes
Clean the throttle valve
area. (Refer to P.13D-79.)
No
Check if the unstable idling (Rough idling, hunting).
(Refer to P.13D-33, INSPECTION PROCEDURE 8.)
NG
Check the ISC servo system.
(Refer to P.13D-55, INSPECTION PROCEDURE 35.)
NG
Check the injector system. (Refer to P.13D-21, INSPECTION PRO-
CEDURE FOR DIAGNOSIS CODE 41.)
NG
Check the idle position switch system.
(Refer to P.13D-52, INSPECTION PROCEDURE 29.)
NG
Check the engine coolant temperature sensor system.
(Refer to P.13D-16, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE 21.)
NG
Check the EGR control solenoid valve system. (Refer to P.13D-57,
INSPECTION PROCEDURE 37.)
NG
Check that the crank angle sensor is installed properly.
Check and adjust the
fixed SAS.
(Refer to P.13D-80.)