Mitsubishi MOTORS L200 1996, Руководство по ремонту

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MPI –
Troubleshooting
13A-34
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
MUT- II Self-Diag code
Are diagnosis codes displayed?
Yes
Refer to P.13A-10, INSPECTION CHART FOR DIAGNOSIS
CODES.
OK
Check the following items.
D
Check the ignition coil, spark plugs, spark plug cables. (Refer to GROUP 16 – On-vehicle Service.)
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
No
MUT- II Actuator test
10 EGR control solenoid valve (Refer to P.13A-62.)
NG
Check the EGR control solenoid valve system. (Refer to P.13A-46,
INSPECTION PROCEDURE 33.)
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) servo system.
D
Malfunction of the ISC system
No
MUT-
II
Data list
26 Idle position switch (Refer to P.13A-69.)
NG
Check the idle position switch system.
(Refer to P.13A-49, INSPECTION PROCEDURE 26.)
OK
MUT- II Data list
14 Throttle position sensor (Refer to P.13A-57.)
NG
Check the throttle position sensor system. (Refer to P.13A-13, IN-
SPECTION PROCEDURE FOR DIAGNOSIS CODE 14.)
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)?
Yes
Check the vehicle speed sensor system. (Refer to P.13A-17, IN-
SPECTION PROCEDURE FOR DIAGNOSIS CODE 24.)
OK
Check the following items.
D
Check the ignition coil, spark plugs, spark plug cables. (Refer to GROUP 16 – On-vehicle Service.)
D
Check the throttle valve area. (Refer to P.13A-78.)
D
Check and adjust the fixed SAS. (Refer to P.13A-79.)
No
MUT-
II
Data list
26 Idle position switch (Refer to P.13A-57.)
NG
Check the idle position switch system.
(Refer to P.13A-40, INSPECTION PROCEDURE 25.)
No
MUT- II Actuator test
10 EGR control solenoid valve (Refer to P.13A-62.)
NG
Check the EGR control solenoid valve system. (Refer to P.13A-46,
INSPECTION PROCEDURE 33.)
No
MUT- II Self-Diag code
Are diagnosis codes displayed?
Yes
Refer to P.13A-10, INSPECTION CHART FOR DIAGNOSIS
CODES.
Were the battery terminals disconnected?
Yes
After warming-up, let the engine run at idling for 10 minutes.