Mitsubishi MOTORS L200 1996, Руководство по ремонту

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MPI –
Troubleshooting
13A-54
INSPECTION PROCEDURE 13
The engine stalls when starting the car. (Pass out) Probable cause
In cases such as the above, the cause is probably misfiring due to a weak spark,
or an inappropriate air/fuel mixture when the accelerator pedal is depressed.
D
Drawing air into intake system
D
Malfunction of the ignition system
OK
Check the following items.
D
Check the ignition coil, spark plugs, spark plug cables.
D
Check if air was drawn into the intake system.
Broken intake manifold gasket
Broken or disconnected vacuum hose
Improper operation of the PCV valve
Broken air intake hose
NG
Check the EGR control solenoid valve system. (Refer to P.13A-33,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE P0403.)
No
MUT- II Actuator test
10 EGR control solenoid valve (Refer to P.13A-72.)
MUT- II Self-Diag code
Are diagnosis codes displayed?
Yes
Refer to P.13A-9, INSPECTION CHART FOR DIAGNOSIS
CODES.
INSPECTION PROCEDURE 14
The engine stalls when decelerating. Probable cause
In cases such as the above, the cause is probably that the intake air volume is insufficient
due to a defective idle speed control (ISC) system.
D
Malfunction of the ISC system
OK
Check the following items.
D
Check the ignition coil, spark plugs, spark plug cables.
D
Clean the throttle valve area.
D
Check and adjust the fixed SAS.
NG
Check the EGR control solenoid valve system. (Refer to P.13A-33,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE P0403.)
No
MUT-
II
Actuator test
10 EGR control solenoid valve (Refer to P.13A-72.)
Yes
Check the vehicle speed sensor system. (Refer to P.13A-36, IN-
SPECTION PROCEDURE FOR DIAGNOSIS CODE P0500.)
OK
MUT- II Data list
45 ISC servo position
D
Is the idle speed control (ISC) servo position drops to 0 – 2
steps when decelerating (engine r/min less than 1,000)?
NG
Check the throttle position sensor system. (Refer to P.13A-18, IN-
SPECTION PROCEDURE FOR DIAGNOSIS CODE P0120.)
OK
MUT- II Data list
14 Throttle position sensor (Refer to P.13A-67.)
NG
Check the idle position switch system. (Refer to P.13A-39, INSPEC-
TION PROCEDURE FOR DIAGNOSIS CODE P0510.)
MUT- II Data list
26 Idle position switch (Refer to P.13A-67.)
No
Yes
Refer to P.13A-9, INSPECTION CHART FOR DIAGNOSIS
CODES.
No
MUT- II Self-Diag code
Are diagnosis codes displayed?
Were the battery terminals disconnected?
Yes
After warming-up, let the engine run at idling for 10 minutes.