air condition MITSUBISHI LANCER EVOLUTION 2007 Service Owner's Manual

MPI -Troubleshooting13A-16
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
MUT-IIData list
DNo. 25 Barometric pressure
sensor (Refer to P.13A-103.)NGReplace engine-ECU.
OK
Check the following connector:
C-115NG
Repair
OK
Check and repair the harness between
the air flow sensor and engine-ECU.
DCheck for disconnection and
damage of the output wire.
OK
Measure at the C-115 engine-ECU
connector.
DMeasure the engine-ECU terminal
voltage.
DIgnition switch: ON
DVoltage between terminal No. 85
and earth.
OK:High 0 m 3.8 - 4.2 V
High 600 m 3.5 - 3.9 V
High 1,200 m 3.3 - 3.7 V
High 1,800 m 3.0 - 3.4 VNGCheck the following connector:
C-115NGRepair
OK
Replace the air flow sensor.
OK
Check the harness between the air
flow sensor and engine-ECU.
DCheck for short-circuit and
damage of the output wire.NG
Repair
(3) NGCheck the following connector:
C-115NG
Repair
OK
Check and repair the harness between
the air flow sensor and engine-ECU.
DCheck for damage of the power
cable.
DCheck for damage of the earth
wire.
OK
Measure at the B-31 air flow sensor
connector.
DUsing the test harness
(MB991709), connect only
connector terminals No. 1, No. 2,
and No. 5, and measure at the
pickup harness.
DIgnition switch: ON
(1) Voltage between terminal No. 1
and earth
OK:4.9 - 5.1 V
(2) Voltage between terminal No. 5
and earth
OK:Less than 0.5 V
(3) Voltage from No. 2 to earth
OK:High 0 m 3.8 - 4.2 V
High 600 m 3.5 - 3.9 V
High 1,200 m 3.3 - 3.7 V
High 1,800 m 3.0 - 3.4 V(1), (2) NGCheck the following connectors:
C-115NGRepair
From the previous page
Code No. P0110 Intake air temperature sensor systemProbable cause
Inspection Range
DAfter setting the ignition switch to the “ON” position, or after 2 seconds from
completion of start.
Evaluation Conditions
DThe sensor output voltage is more than 4.6 V for 4 seconds (Equivalent to intake
air temperature less than - 40_C)
or
DThe sensor output voltage is less than 0.2 V for 4 seconds (Equivalent to intake
air temperature of more than 120_C)DIntake air temperature sensor malfunction
DIntake air temperature sensor circuit disconnection,
short-circuit, or connector contact defect
DEngine-ECU malfunction

MPI -Troubleshooting13A-19
Code No. P0115 Engine coolant temperature sensor
systemProbable cause
Inspection Range
DAfter setting the ignition switch to the “ON” position, or 2 seconds after
completion of engine start.
Evaluation Conditions
DWhen the sensor output voltage is more than 4.6 V for 4 seconds
(Equivalent to water temperature of less than - 45_C)
or
DWhen the sensor output voltage is less than 0.1 V for 4 seconds (Equivalent
to water temperature of more than 140_C)DEngine coolant temperature sensor malfunction
DEngine coolant temperature sensor circuit
disconnection and short-circuit or connector contact
defect
DEngine-ECU malfunction
Inspection Range
DIgnition switch: ON
DThe engine speed is approximately 50 r/min or more.
Evaluation Conditions
DFrom less than 1.6 V (Equivalent to water temperature of more than 40_C),
the sensor output voltage rises to more than 1.6 V (Equivalent to water
temperature of less than 40_C)
DThe sensor output voltage is more than 1.6 V for 5 minutes
OK
To the next page
OK
Measure at the B-118 engine coolant
temperature sensor connector.
DDisconnect the connector and
measure at the sensor side.
DResistance between terminals No.
1 and No. 2
OK:Water temperature - 20_C
14 - 17 kΩ
Water temperature 0_C
5.1 - 6.5 kΩ
Water temperature 20_C
2.1 - 2.7 kΩ
Water temperature 40_C
0.9 - 1.3 kΩ
Water temperature 60_C
0.48 - 0.68 kΩ
Water temperature 80_C
0.26 - 0.36 kΩNGReplace the engine coolant
temperature sensor.
NG
Check the following connector:
B-118NG
Repair
MUT-IIData list
DNo. 21 Engine coolant
temperature sensor
OK:When cool, more or less
the same as the ambient
temperature (air tempera-
ture) When warm
80 - 120_COKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)

MPI -Troubleshooting13A-21
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
MUT-IIData list
DNo. 21 Engine coolant
temperature sensor
OK:When cool, more or less
the same as the ambient
temperature (air tempera-
ture) When warm,
80 - 120_CNGReplace the engine-ECU.
OK
Check and repair the harness between
the engine coolant temperature sensor
and engine-ECU.
DCheck for damage of the output
wire.
DCheck for damage of the earth
wire.
OK
Measure at the B-118 engine coolant
temperature sensor connector.
DUsing the test harness
(MB991658), connect the
connector, and measure at the
pickup harness.
DIgnition switch: ON
DVoltage between terminal No. 1
and the earth.
OK:Water temperature - 20_C
3.9 - 4.5 V
Water temperature 0_C
3.2 - 3.8 V
Water temperature 20_C
2.3 - 2.9 V
Water temperature 40_C
1.3 - 1.9 V
Water temperature 60_C
0.7 - 1.3 V
Water temperature 80_C
0.3 - 0.9 VNGCheck the following connector:
C-115NG
Repair
From the previous page
Code No. P0120 Throttle position sensor systemProbable cause
Inspection Range
DIgnition switch: ON
DExcluding for two seconds after ignition switch is set to “ON” position or two
seconds after engine start is completed.
Evaluation Conditions
DThe sensor output voltage is 0.2 V or less for 2 seconds.DThrottle position sensor malfunction
DThrottle position sensor circuit disconnection,
short-circuit, or connector contact defect
DEngine-ECU malfunction
Inspection Range
DThe engine speed is 1,000 r/min or less.
DThe volumetric efficiency is 60 % or less.
Evaluation Conditions
DThe sensor output voltage is 2.0 V or less for 2 seconds.
OK
To the next page
OK
Check the throttle position sensor.
(Refer to P.13A-134.)NGReplace the throttle position sensor.
NG
Check the following connector:
B-02NG
Repair
MUT-IIData list
DNo. 14 Throttle position sensor
(Refer to P.13A-103.)OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)

MPI -Troubleshooting13A-24
Code No. P0130 Oxygen sensor (front) systemProbable cause
Inspection Range
DMore than 3 minutes passed after completion of start of engine
DThe engine coolant temperature is approximately more than 80_C.
DThe engine speed is more than 1,200 r/min.
DThe volumetric efficiency is 25% or more.
Evaluation Conditions
DWhen 5 V is applied to oxygen sensor (front) in engine-ECU while oxygen
sensor (front) output voltage is 0.2 V or less, the sensor output voltage is
4.5 V or more.DOxygen sensor (front) malfunction
DOxygen sensor (front) circuit disconnection,
short-circuit, or connector contact defect.
DEngine-ECU malfunction
OK
To the next pageOK
Check the harness between the
oxygen sensor (front) and
engine-ECU.
DCheck for damage of the output
wire.NG
Repair NG
OK
Check the following connector:
C-115Repair
(2) NGCheck the oxygen sensor (front).
(Refer to P.13A-134.)NGReplace the oxygen sensor (front).
OK
Check the harness between the
oxygen sensor (front) and
engine-ECU.
DCheck for damage of the earth
wire.NG
Repair
OK
Measure at the B-34 oxygen sensor
(front) connector.
DUsing the test harness
(MB998464), connect the
connector, and measure at the
pickup harness.
DEngine: After warm-up
(1) Voltage between terminal No. 2
and earth
OK:Less than 0.5 V
(2) Voltage between terminal No. 4
and the earth
DAt rapid deceleration from 4,000
r/min
OK:200 mV or less
DDuring rapid racing
OK:600 - 1,000 mV(1) NGCheck the following connector:
C-115NG
Repair
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
MUT-IIData list
DNo. 11 Oxygen sensor (front)
(Refer to P.13A-102.)NGReplace engine-ECU.
OK
Check the harness between the
oxygen sensor (front) and
engine-ECU.
DCheck for disconnection and
damage of the earth wire.NG
Repair
OK
Measure at the B-34 oxygen sensor
(front) connector.
DDisconnect connector to measure
at the harness side
DResistance between terminal No.
2 and earth.
OK:Less than 2ΩNGCheck the following connector:
C-115NG
Repair
NG
Check the following connector:
B-34NG
Repair
MUT-IIData list
DNo. 11 Oxygen sensor (front)
(Refer to P.13A-102.)OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)

MPI -Troubleshooting13A-26
Code No. P0135 Oxygen sensor heater (front) systemProbable cause
Inspection Range
DThe engine coolant temperature is approximately more than 20_C.
DThe oxygen sensor heater (front) is ON.
DThe engine speed is more than 50 r/min.
DA/C relay: OFF, radiator fan: OFF
DThe battery voltage is 11 - 16 V.
Evaluation Conditions
DThe oxygen sensor heater (front) current is less than 0.2 A or more than 3.5
A for 4 seconds.DOxygen sensor heater (front) malfunction
DOxygen sensor heater (front) circuit disconnection,
short-circuit, or connector contact defect
DEngine-ECU malfunction
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
Check the trouble symptom.NGReplace the engine-ECU.
OK
Check the harness between the
oxygen sensor (front) and
engine-ECU.
DCheck for damage of the earth
wire.NG
repair
OK
Check the harness between the
oxygen sensor (front) and engine
control relay.
DCheck for damage of the power
cable.NG
Repair
OK
Check the following connector:
C-118NG
Repair
OK
Replace the engine-ECU.NG
OK
Check the harness between the
oxygen sensor (front) and
engine-ECU.
DCheck for disconnection and
short-circuit of the earth wire.Repair
OK
Measure at the C-118 engine-ECU
connector.
DMeasure the engine-ECU terminal
voltage.
DIgnition switch: ON
DVoltage between terminal No. 60
and earth.
OK:System voltageNGCheck the following connector:
C-118NG
Repair
OK
Check and repair the harness between
the oxygen sensor (front) and engine
control relay.
DCheck the power cable for
disconnection and short-circuit.
OK
Measure at the B-34 oxygen sensor
(front) connector.
DDisconnect the connector, and
measure at the harness.
DIgnition switch: ON
DVoltage between terminal No. 1
and earth
OK:System voltageNGCheck the following connector:
B-11XNG
Repair
OK
Measure at the B-34 oxygen sensor
(front) connector.
DDisconnect the connector, and
measure at the sensor.
DResistance between terminal No.
1 and terminal No. 3.
OK:4.5 - 8.0ΩNGReplace the oxygen sensor (front).
Check the following connector:
B-34NG
Repair

MPI -Troubleshooting13A-27
Code No. P0136 Oxygen sensor (rear) systemProbable cause
Inspection Range
DMore than 3 minutes passed after completion of start of engine
DThe engine coolant temperature is approximately more than 80_C.
DThe engine speed is more than 1,200 r/min.
DThe volumetric efficiency is 25% or more.
Evaluation Conditions
DWhen 5 V is applied to the oxygen sensor (rear), the output voltage is more
than 4.5 V.DOxygen sensor (rear) malfunction
DOxygen sensor (rear) circuit disconnection,
short-circuit, or connector contact defect.
DEngine-ECU malfunction
OK
To the next pageOK
Check the harness between the
oxygen sensor (rear) and engine-ECU.
DCheck for damage of the output
wire.NG
Repair NG
OK
Check the following connector:
C-115Repair
(2) NGCheck the oxygen sensor (rear).
(Refer to P.13A-135.)NGReplace the oxygen sensor (rear).
OK
Check the harness between the
oxygen sensor (rear) and engine-ECU.
DCheck for damage of the earth
wire.NG
Repair
OK
Measure at the D-22 oxygen sensor
(rear) connector.
DUsing the test harness
(MB998464), connect the
connector, and measure at the
pickup harness.
DEngine: After warm-up
(1) Voltage between terminal No. 2
and earth
OK:Less than 0.5 V
(2) Voltage between terminal No. 1
and the earth
DDuring rapid racing
OK:0 and 600 - 1,000 mV
alternate.(1) NGCheck the following connector:
C-115NG
Repair
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
MUT-IIData list
DNo. 59 Oxygen sensor (rear)
(Refer to P.13A-105.)NGReplace engine-ECU.
OK
Check the harness between the
oxygen sensor (rear) and engine-ECU.
DCheck for disconnection and
damage of the earth wire.NG
Repair
OK
Measure at the D-22 oxygen sensor
(rear) connector.
DDisconnect connector to measure
at the harness side
DResistance between terminal No.
2 and earth.
OK:Less than 2ΩNGCheck the following connector:
C-115NG
Repair
NG
Check the following connector:
D-22NG
Repair
MUT-IIData list
DNo. 59 Oxygen sensor (rear)
(Refer to P.13A-105.)OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)

MPI -Troubleshooting13A-29
Code No. P0141 Oxygen sensor heater (rear) systemProbable cause
Inspection Range
DThe engine coolant water temperature is approximately more than 20_C.
DThe oxygen sensor heater (rear) is ON.
DThe engine speed is more than 50 r/min.
DA/C relay: OFF, radiator fan: OFF
DThe battery voltage is 11 - 16 V.
Evaluation Conditions
DThe oxygen sensor heater (rear) current is less than 0.2 A or more than 3.5
A for 4 seconds.DOxygen sensor heater (rear) malfunction
DOxygen sensor heater (rear) circuit disconnection,
short-circuit, or connector contact defect
DEngine-ECU malfunction
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
Check the trouble symptom.NGReplace the engine-ECU.
OK
Check the harness between the
oxygen sensor (rear) and engine-ECU.
DCheck for damage of the earth
wire.NG
Repair
OK
Check the harness between the
oxygen sensor (rear) and engine
control relay.
DCheck for damage of the power
cable.NG
Repair
OK
Check the following connector:
B-11X, C-108NG
Repair
OK
Replace the engine-ECU.NG
OK
Check the harness between the
oxygen sensor (rear) and engine-ECU.
DCheck for disconnection and
short-circuit of the earth wire.Repair
OK
Measure at the C-118 engine-ECU
connector.
DMeasure the engine-ECU terminal
voltage.
DIgnition switch: ON
DVoltage between terminal No. 54
and earth.
OK:System voltageNGCheck the following connector:
C-118NG
Repair
OK
Check and repair the harness between
the oxygen sensor (rear) and engine
control relay.
DCheck the power cable for
disconnection and short-circuit.
OK
Measure at the D-22 oxygen sensor
(rear) connector.
DDisconnect the connector, and
measure at the harness.
DIgnition switch: ON
DVoltage between terminal No. 3
and earth
OK:System voltageNGCheck the following connector:
B-11XNG
Repair
OK
Measure at the D-22 oxygen sensor
(rear) connector.
DDisconnect the connector, and
measure at the sensor.
DResistance between terminal No.
3 and terminal No. 4.
OK:11 - 1 8ΩNGReplace the oxygen sensor (rear).
Check the following connector:
D-22NG
Repair

MPI -Troubleshooting13A-30
Code No. P0201 No. 1 injector systemProbable cause
Inspection Range
DThe engine speed is 50 - 1,000 r/min.
DThe throttle position sensor output voltage is 1.15 V or less.
DMUT-IIforced drive (actuator test) is not being carried out.
Evaluation Conditions
DSurge voltage at injector coil is not detected for 2 seconds.DNo. 1 injector malfunction
DNo. 1 injector circuit disconnection, short-circuit, or
connector contact defect
DEngine-ECU malfunction
OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
Measure the signal waveform at the
C-126 engine-ECU connector (using
an analyzer).
DEngine: Idling
DVoltage between terminal No. 1 and
earth
OK:The waveform shown on
P.13A-119 (Inspection Proce-
dure Using Analyzer) should
be output.NGReplace the engine-ECU.
OK
Check the harness between the No. 1
injector and engine-ECU.
DCheck for disconnection,
short-circuit and damage of the
output cable.NG
Repair
OK
Check the following connector:
C-126NG
Repair
OK
Check the harness between the resis-
tor (for injector) and engine control
relay.
DCheck for damage of the power
cable.NG
Repair
OK
Check the harness between the No. 1
injector and resistor (for injector).
DCheck for damage of the power
cable.NG
Repair
OK
Check and repair the harness between
the resistor (for injector) and engine
control relay.
DCheck for disconnection and
short-circuit of the power cable.NG
OK
Check the harness between the No. 1
injector and resistor (for injector).
DCheck for disconnection and
short-circuit of the power cable.Repair
OK
Check the resistor. (Refer to
P.13A-138.)
OK
Measure at the B-27 No. 1 injector
connector.
DDisconnect the connector to
measure at the harness side.
DIgnition switch: ON
DVoltage between terminal No. 1 and
earth
OK:System voltageNGCheck the following connectors:
B-11X, B-138, C-108NG
Repair
OK
Measure at the B-27 No. 1 injector
connector.
DDisconnect the connector to
measure at the injector side.
DResistance between terminal No. 1
and terminal No. 2
OK:2-3ΩNGReplace the No. 1 injector.
NG
Check the following connector:
B-27NG
Repair
MUT-IIActuator test
DNo. 01: No. 1 injector
OK:The idling state changes.OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)

MPI -Troubleshooting13A-31
Code No. P0202 No. 2 injector systemProbable cause
Inspection Range
DThe engine speed is 50 - 1,000 r/min.
DThe throttle position sensor output voltage is 1.15 V or less.
DMUT-IIforced drive (actuator test) is not being carried out.
Evaluation Conditions
DSurge voltage at injector coil is not detected for 2 seconds.DNo. 2 injector malfunction
DNo. 2 injector circuit disconnection, short-circuit, or
connector contact defect
DEngine-ECU malfunction
OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
Measure the signal waveform at the
C-126 engine-ECU connector (using
an analyzer).
DEngine: Idling
DVoltage between terminal No. 1 and
earth
OK:The waveform shown on
P.13A-119 (Inspection Proce-
dure Using Analyzer) should
be output.NGReplace the engine-ECU.
OK
Check the harness between the No. 2
injector and engine-ECU.
DCheck for disconnection,
short-circuit and damage of the
output cable.NG
Repair
OK
Check the following connector:
C-126NG
Repair
OK
Check the harness between the resis-
tor (for injector) and engine control
relay.
DCheck for damage of the power
cable.NG
Repair
OK
Check and repair the harness between
the resistor (for injector) and engine
control relay.
DCheck for disconnection and
short-circuit of the power cable.NG
OK
Check the harness between the No. 2
injector and resistor (for injector).
DCheck for disconnection and
short-circuit of the power cable.Repair NG
OK
Check the resistor. (Refer to
P.13A-138.)Repair
OK
Check the harness between the No. 2
injector and resistor (for injector).
DCheck for damage of the power
cable.NG
Repair
OK
Measure at the B-26 No. 2 injector
connector.
DDisconnect the connector to
measure at the harness side.
DIgnition switch: ON
DVoltage between terminal No. 1 and
earth
OK:System voltageNGCheck the following connectors:
B-11X, B-138, C-108NG
Repair
OK
Measure at the B-26 No. 2 injector
connector.
DDisconnect the connector to
measure at the injector side.
DResistance between terminal No. 1
and terminal No. 2
OK:2-3ΩNGReplace the No. 2 injector.
NG
Check the following connector:
B-26NG
Repair
MUT-IIActuator test
DNo. 02: No. 2 injector
OK:The idling state changes.OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)

MPI -Troubleshooting13A-32
Code No. P0203 No. 3 injector systemProbable cause
Inspection Range
DThe engine speed is 50 - 1,000 r/min.
DThe throttle position sensor output voltage is 1.15 V or less.
DMUT-IIforced drive (actuator test) is not being carried out.
Evaluation Conditions
DSurge voltage at injector coil is not detected for 2 seconds.DNo. 3 injector malfunction
DNo. 3 injector circuit disconnection, short-circuit, or
connector contact defect
DEngine-ECU malfunction
OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
OK
Measure the signal waveform at the
C-126 engine-ECU connector (using
an analyzer).
DEngine: Idling
DVoltage between terminal No. 1 and
earth
OK:The waveform shown on
P.13A-119 (Inspection Proce-
dure Using Analyzer) should
be output.NGReplace the engine-ECU.
OK
Check the harness between the No. 3
injector and engine-ECU.
DCheck for disconnection,
short-circuit and damage of the
output cable.NG
Repair
OK
Check the following connector:
C-126NG
Repair
OK
Check the harness between the resis-
tor (for injector) and engine control
relay.
DCheck for damage of the power
cable.NG
Repair
OK
Check and repair the harness between
the resistor (for injector) and engine
control relay.
DCheck for disconnection and
short-circuit of the power cable.NG
OK
Check the harness between the No. 3
injector and resistor (for injector).
DCheck for disconnection and
short-circuit of the power cable.Repair NG
OK
Check the resistor. (Refer to
P.13A-138.)Repair
OK
Check the harness between the No. 3
injector and resistor (for injector).
DCheck for damage of the power
cable.NG
Repair
OK
Measure at the B-25 No. 3 injector
connector.
DDisconnect the connector to
measure at the harness side.
DIgnition switch: ON
DVoltage between terminal No. 1 and
earth
OK:System voltageNGCheck the following connectors:
B-11X, B-138, C-108NG
Repair
OK
Measure at the B-25 No. 3 injector
connector.
DDisconnect the connector to
measure at the injector side.
DResistance between terminal No. 1
and terminal No. 2
OK:2-3ΩNGReplace the No. 3 injector.
NG
Check the following connector:
B-25NG
Repair
MUT-IIActuator test
DNo. 03: No. 3 injector
OK:The idling state changes.OKIntermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)