MPI <4G1> -
Troubleshooting
13A-57
INSPECTION PROCEDURE 22
Too high CO and HC concentration when idling
Probable cause
Abnormal air-fuel ratio is suspected.
D
Malfunction of the air-fuel ratio control system
D
Deteriorated catalyst
Check the trouble symptom.
MUT-
II
Self-Diag code
Are diagnosis codes displayed?
Yes
Refer to P.13A-9, INSPECTION CHART FOR DIAGNOSIS
CODES.
NG
Check the fuel pressure. (Refer to P.13A-78*.)
OK
NG
Check the trouble symptom.
NG
Replace the catalytic converter.
No
Check the ignition timing.
(Refer to GROUP 11B - On-vehicle Service.)
NG
Check that the distributor is installed properly.
OK
MUT-
II
Data list
21 Engine coolant temperature sensor. (Refer to P.13A-66.)
NG
Check the engine coolant temperature sensor system.
(Refer to P.13A-13, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE P0115.)
OK
MUT-
II
Data list
13 Intake air temperature sensor (Refer to P.13A-65.)
NG
Check the intake air temperature sensor system.
(Refer to P.13A-12, INSPECTION PROCEDURE FOR DIAGNOSIS
CODE P0110.)
OK
MUT-
II
Data list
59 Oxygen sensor (rear)
D
Transmission: 2nd gear
D
Driving with throttle widely open
OK:
600 - 1,000 mV
NG
Check the oxygen sensor (rear) system. (Refer to P.13A-22,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE P0136.)
OK
MUT-
II
Data list
11 Oxygen sensor (front)
OK:
600 - 1,000 mV when racing suddenly
NG
Check the oxygen sensor (front) system. (Refer to P.13A-19,
INSPECTION PROCEDURE FOR DIAGNOSIS CODE P0130.)
OK
MUT-
II
Data list
11 Oxygen sensor (front)
OK:
Repeat 0 - 400 mV and 600 - 1,000 mV alternately when
idling.
OK
Replace the oxygen sensor.
Check the following items.
D
Check the injectors for operation sound.
D
Check the injectors for fuel leakage.
D
Check the ignition coil, spark plugs, spark plug cables. (Refer to GROUP 16 - On-vehicle Service.)
D
Check the compression pressure. (Refer to GROUP 11B - On-vehicle Service.)
D
Check the positive crankcase ventilation system. (Refer to GROUP 17 - Emission Control System.)
D
Check the purge control system. (Refer to GROUP 17 - Emission Control System.)
D
Check the EGR control system. (Refer to GROUP 17 - Emission Control System.)
NOTE:
*: Refer to the ’96 COLT/LANCER Workshop Manual (Pub. No. PWME9511).
Содержание Colt 2000
Страница 7: ...11A 1 ENGINE CONTENTS ENGINE 4G1 11A ENGINE 4G9 11B ...
Страница 30: ...NOTES ...
Страница 221: ...23 1 AUTOMATIC TRANSMISSION CONTENTS GENERAL 2 Outline of Changes 2 TROUBLESHOOTING 2 ...