MPI <4G1> -
Troubleshooting
13A-25
Code No. P0170 Abnormal fuel system
Probable cause
Range of Check
D
Engine: Being learning the air-fuel ratio
Set Conditions
D
Two seconds or more have been passed while the fuel injection amount
compensation value is too low.
or
D
Two seconds or more have been passed while the fuel injection amount
compensation value is too high.
D
Incorrect fuel pressure
D
Malfunction of injector
D
Malfunction of oxygen sensor (front)
D
Malfunction of intake air temperature sensor
D
Malfunction of vacuum sensor
D
Malfunction of engine-ECU
Replace the engine-ECU.
OK
Replace the engine-ECU.
OK
Less than zero
D
Check for fuel leaks from injector.
D
Check for entry of foreign matter (water, kerosene, etc.) into
the fuel.
D
Check for clogging of the injector.
D
Check for clogging of the fuel filter and fuel line.
D
Check the fuel pump (insufficient discharge rate).
D
Check for exhaust leaks (oxygen sensor installation section,
cracks in exhaust manifold, cracks in front pipe, etc.).
D
Check for entry of foreign matter (water, kerosene, etc.) into
the fuel.
OK
NG
Repair
NG
NG
OK
MUT-
II
Data list
81 Long-term fuel compensation (Refer to P.13A-69.)
D
Is fuel trim more or less than zero?
More than zero
Check if air was drawn
into the intake system.
OK
Check the fuel pressure (Refer to P.13A-78*.)
NG
Repair
NG
NG
OK
Check the harness wire between the engine-ECU and the
injector connector.
NG
Repair
NG
NG
OK
Check the following connectors:
A-74, A-75, A-76, A-80
NG
Replace
NG
Replace
NG
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 DIAGNOS-
TIC TROUBLE CODE P0110.)
OK
Check the injector (Refer to P.13A-86*.)
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 DIAGNOS-
TIC TROUBLE CODE P0115.)
OK
MUT-
II
Data list
32 Vacuum sensor (Refer to P.13A-67.)
NG
Check the vacuum sensor system
(Refer to P.13A-10, INSPECTION PROCEDURE FOR DIAGNOS-
TIC TROUBLE CODE P0105.)
OK
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 ...