Mitsubishi FUEL Manual page 55

INSPECTION PROCEDURE 11
When the engine is cold, it stalls at idling. (Die out)
In such cases as the above, the cause is probably thatthe air/fuelmixture isinappropriate
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.13A-95*.)
Check the injector for operation sound.
MUT-II Data list
26 Idle position switch (Refer to P.13A-75.)
MUT-II Data list
21 Engine coolant temperature sensor (Refer to P.13A-75.)
MUT-II Actuator test
10 EGR control solenoid valve (Refer to P.13A-80.)
Check the fuel pressure. (Refer to P.13A-85*.)
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.
NOTE:
*: Refer to the '97 GALANT Workshop Manual (Pub. No. PWDE9611)
MPI <4G6> -
No
No
No
Yes
OK
OK
OK
OK
OK
OK
OK
Troubleshooting
Probable cause
D Malfunction of the ISC 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.13A-8, INSPECTION CHART FOR DIAGNOSIS
CODES.
Yes
Clean the throttle valve
area.
(Refer to P.13A-81*.)
No
Check if the unstable idling (Rough idling, hunting).
(Refer to P.13A-51, INSPECTION PROCEDURE 8.)
NG
Check the ISC system. (Refer to P.13A-39, INSPECTION PROCE-
DURE FOR DIAGNOSIS CODE P0505.)
NG
Check the injector system. (Refer to P.13A-28, INSPECTION PRO-
CEDURE FOR DIAGNOSIS CODE P0201, P0202, P0203, P0204.)
NG
Check the idle position switch system. (Refer to P.13A-41, INSPEC-
TION PROCEDURE FOR DIAGNOSIS CODE P0510.)
NG
Check the engine coolant temperature sensor system.
(Refer toP.13A-16, INSPECTIONPROCEDURE FORDIAGNOSIS
CODE P0115.)
NG
Check the EGR control solenoid valve system. (Refer to P.13A-36,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE P0403.)
NG
Check that the crank angle sensor is installed properly.
13A-55
Check and adjust the
fixed SAS.
(Refer to P.13A-83*.)