Mitsubishi FUEL Manual page 149

INSPECTION PROCEDURE 6
Initial combustion but no complete combustion
(starting impossible)
In such cases as the above, the cause is probably that the spark plugs are generating
sparks but the sparks are weak, or the initial mixture for starting is not appropriate.
Check battery voltage when cranking.
OK: 8 V or higher
MUT-II Self-Diag code
Are diagnosis codes displayed?
MUT-II Actuator test
07 Fuel pump (Refer to P.13A-183.)
MUT-II Data list
21 Engine coolant temperature sensor (Refer to P.13A-176.)
MUT-II Data list
18 Ignition switch-ST (Refer to P.13A-176.)
Can any sound be heard from the injectors when cranking?
Is starting good if the engine is cranked with the accelerator pedal
slightly depressed?
Check the ignition timing when cranking.
OK: Approx. 5_BTDC
Check the following items.
D Check the ignition coil, spark plugs, spark plug cables.
D Check if the injectors are clogged.
D Check the compression pressure.
D Check fuel lines for clogging.
D Check if foreign materials (water, alcohol, etc.) got into fuel.
NOTE:
*: Refer to the '97 GALANT Workshop Manual (Pub. No. PWDE9611)
MPI <6A1> -
OK
No
OK
OK
OK
OK
No
OK
Troubleshooting
Probable cause
D Malfunction of the ignition system
D Malfunction of the injector system
D Foreign materials in fuel
D Poor compression
D Malfunction of the engine-ECU
NG
Check the battery. (Refer to GROUP 54 - Battery.)
Yes
Referto P.13A-99, INSPECTION CHARTFORDIAGNOSIS CODE.
NG
Check the fuel pump system.
(Refer to P.13A-172, INSPECTION PROCEDURE 28.)
NG
Check the engine coolant temperature sensor system.
(Refer to P.13A-106, INSPECTION PROCEDURE FOR DIAGNO-
SIS CODE P0115.)
NG
Check the ignition switch-ST system.
(Refer to P.13A-173, INSPECTION PROCEDURE 29.)
NG
Check the injector system. (Refer to P.13A-127, INSPECTION
PROCEDURE FOR DIAGNOSIS CODE P0201, P0202, P0203,
P0204, P0205, P0206.)
Yes
Check ISC servo for op-
eration sound.
(Refer to P.13A-199*.)
OK
D Clean the throttle valve area. (Refer to P.13A-184*.)
D Check and adjust the fixed SAS. (Refer to P.13A-187*.)
NG
Check that the crank angle sensor is installed properly.
13A-149
NG
Check the ISC system.
(Refer to P.13A-137, IN-
SPECTION PROCE-
DURE FOR DIAGNOSIS
CODE P0505.)