MPI –
Troubleshooting
13-9
Code No. 13 Intake air temperature sensor system
Probable cause
Range of Check
D
Ignition switch: ON
D
Excluding 60 seconds after the ignition switch is turned to ON or immediately
after the engine starts.
Set conditions
D
Sensor output voltage is 4.6 V or more (corresponding to an intake air temperature
of –45
_
C or less) for 4 seconds.
or
D
Sensor output voltage is 0.2V or less (corresponding to an intake air temperature
of 125
_
C or more) for 4 seconds.
D
Malfunction of the intake air temperature sensor
D
Improper connector contact, open circuit or
short-circuited harness wire of the intake air
temperature sensor circuit
D
Malfunction of the engine-ECU
OK
Check trouble symptom.
Check the intake air temperature sen-
sor. (Refer to P.13-32.)
NG
Replace air flow sensor.
OK
Measure at the air flow sensor connec-
tor A-25.
D
Disconnect the connector, and
measure at the harness side.
D
Voltage between 6 and earth
(Ignition switch: ON)
OK: 4.5– 4.9 V
D
Continuity between 5 and earth
OK: Continuity
NG
Check the following connector:
C-62
NG
Repair
OK
Check trouble symptom.
NG
Check the harness wire between the
engine-ECU and the intake air temper-
ature sensor connector.
NG
Repair
OK
Replace the engine-ECU.
OK
Check the following connector:
A-25
NG
Repair
NG
Code No. 14 Throttle position sensor (TPS) system
Probable cause
Range of Check
D
Ignition switch: ON
D
Excluding 60 seconds after the ignition switch is turned to ON or immediately
after the engine starts.
Set conditions
D
The sensor output voltage is 0.2 V or less for 4 seconds.
D
Malfunction of the throttle position sensor
D
Improper connector contact, open circuit or
short-circuited harness wire of the throttle position
sensor circuit
D
Improper “ON” state of idle position switch
D
Short circuit of the idle position switch signal line
D
Malfunction of the engine-ECU
Check the throttle position sensor.
NG
Replace
OK
Measure at the throttle position sensor
connector A-16.
D
Disconnect the connector, and
measure at the harness side.
D
Voltage between 1 and earth
(Ignition switch: ON)
OK: 4.8– 5.2 V
D
Continuity between 4 and earth
OK: Continuity
NG
Check the following connector:
B-62
NG
Repair
OK
Check trouble symptom.
NG
Check the harness wire between the
engine-ECU and the throttle position
sensor connector.
NG
Repair
OK
Replace the engine-ECU.
OK
Check the throttle position sensor out-
put circuit.
Summary of Contents for Lancer Evolution IV
Page 1: ...Pub No S9806CNCP9 WORKSHOP MANUAL EVOLUTION IV EVOLUTION V...
Page 3: ...MODELS 2 00 1 GENERAL CONTENTS...
Page 40: ...LUBRICANTS 2 ENGINE OIL COOLER 2 12 1 ENGINE LUBRICATION CONTENTS...
Page 117: ...MANUAL TRANSMISSION 22A MANUAL TRANSMISSION OVERHAUL 22B 22 1 MANUAL TRANSMISSION CONTENTS...
Page 179: ...26 1 FRONT AXLE CONTENTS SERVICE SPECIFICATIONS 2 SPECIAL TOOLS 2 AXLE HUB AND KNUCKLE 3...
Page 237: ...ROLL STOPPER AND CENTERMEMBER 2 32 1 POWER PLANT MOUNT CONTENTS...
Page 265: ...BASIC BRAKE SYSTEM 35A ANTI LOCK BRAKING SYSTEM ABS 35B 35 1 SERVICE BRAKES CONTENTS...