Mitsubishi FUEL Manual page 162

13A-162
INSPECTION PROCEDURE 18
Poor acceleration
Defective ignition system, abnormal air-fuel ratio, poor compression pressure, etc.
are suspected.
MUT-II Self-Diag code
Are diagnosis codes displayed?
Check the injectors for operation sound.
Check the ignition timing.
(Refer to GROUP 11A - On-vehicle Service.)
MUT-II Data list
26 Idle position switch (Refer to P.13A-176.)
MUT-II Data list
13 Intake air temperature sensor (Refer to P.13A-176.)
MUT-II Data list
25 Barometric pressure sensor (Refer to P.13A-176.)
MUT-II Data list
21 Engine coolant temperature sensor (Refer to P.13A-176.)
MUT-II Data list
14 Throttle position sensor (Refer to P.13A-176.)
MUT-II Actuator test
10 EGR control solenoid valve (Refer to P.13A-183.)
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MPI <6A1> -
No
OK
OK
OK
OK
OK
OK
OK
OK
Troubleshooting
Probable cause
D Malfunction of the ignition system
D Malfunction of air/fuel ratio control system
D Malfunction of the fuel supply system
D Poor compression pressure
D Clogged exhaust system
Yes
Refer to P.13A-99, INSPECTION CHART FOR DIAGNOSIS
CODES.
NG
Check the injector system. (Refer to P.13A-127, INSPECTION
PROCEDURE FOR DIAGNOSIS CODE P0201, P0202, P0203,
P0204, P0205, P0206.)
NG
Check that the crank angle sensor is installed properly.
NG
Check the idle position switch system.
(Refer to P.13A-139, INSPECTION PROCEDURE FOR DIAGNO-
SIS CODE P0510.)
NG
Check the intake air temperature sensor system. (Refer to
P.13A-105, INSPECTION PROCEDURE FOR DIAGNOSIS CODE
P0110.)
NG
Check the barometric pressuresensor system. (Refer to P.13A-103,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE P0105.)
NG
Check the engine coolant temperature sensor system.
(Refer to P.13A-106, INSPECTION PROCEDURE FOR DIAGNO-
SIS CODE P0115.)
NG
Check the throttle position sensor system. (Refer to P.13A-109,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE P0120.)
NG
Check the EGR control solenoid valve system.
(Refer to P.13A-133, INSPECTION PROCEDURE FOR DIAGNO-
SIS CODE P0403.)