2007 MITSUBISHI LANCER EVOLUTION sensor

MPI -On-vehicle Service13A-134
THROTTLE POSITION SENSOR CHECK
1. Disconnect the throttle position sensor connector.
2. Measure the resistance between the throttle position
sensor side connector terminal No. 1 and terminal No.
4.
Standard value: 3.5 - 6.5 kΩ
3. Measure the resistance between the throttle position
sensor side connector terminal No. 2 and terminal No.
4.
Normal condition:
Throttle valve slowly open
until fully open from the idle
positionChanges smoothly in
proportion to the opening
angle of the throttle valve
4. If the resistance is outside the standard value, or if it
doesn’t change smoothly, replace the throttle position
sensor.
NOTE
For the throttle position sensor adjustment procedure,
refer to P.13A-90.
OXYGEN SENSOR CHECK

1. Disconnect the oxygen sensor connector and connect
the special tool (test harness: MB998464) to the connector
on the oxygen sensor side.
2. Make sure that there is continuity (4.5 - 8.0Ωat 20_C)
between terminal No. 1 and terminal No. 3 on the oxygen
sensor connector.
3. If there is no continuity, replace the oxygen sensor.
4. Warm up the engine until engine coolant is 80_C or higher.
Equipment side connector
Throttle
bodyThrottle
position
sensor
Oxygen
sensor
(front)
Equipment
side connector
1
32
4
Oxygen
sensor
(front)
equipment
side
conenctor
MD998464 BlueRed

MPI -On-vehicle Service13A-135
5. Use the jumper wire to connect terminal No. 1 of the
oxygen sensor connector to the battery (+) terminal and
terminal No. 3 to the battery ( - ) terminal.
Caution
Be very careful when connecting the jumper wire;
incorrect connection can damage the oxygen sensor.
6. Connect a digital voltage meter between terminal No.
2 and terminal No. 4.
7. While repeatedly racing the engine, measure the oxygen
sensor output voltage.
Standard value:
EngineOxygen sensor
output voltageRemarks
When
racing the
engine0.6 - 1.0 VIf you make the air/fuel ratio
rich by racing the engine
repeatedly, a normal oxy-
gen sensor will output a
voltage of 0.6 - 1.0 V.
8. If the sensor is defective, replace the oxygen sensor.
NOTE
For removal and installation of the oxygen sensor, refer
to GROUP 15 - Exhaust Pipe and Main Muffler.

1. Disconnect the oxygen sensor connector and connect
the special tool (test harness set) to the connector on
the oxygen sensor side.
2. Make sure that there is continuity (11 - 18Ωat 20_C)
between terminal No. 3 and terminal No. 4 on the oxygen
sensor connector.
3. If there is no continuity, replace the oxygen sensor.
NOTE
(1) If the MUT-IIdoes not display the standard value
although no abnormality is found by the above
mentioned continuity test and harness check, replace
the oxygen sensor (rear).
(2) For removal and installation of the oxygen sensor,
refer to GROUP 15 - Exhaust Pipe and Main Muffler.
MD998464Blue Black
Red
White Jumper
wire
Oxygen
sensor
(rear)
MB991223
Equipment side connector

MPI -On-vehicle Service13A-138
RESISTOR (FOR INJECTOR) CHECK
1. Disconnect the resistor connector.
2. Measure the resistance between each terminal.
Standard value:
Measurement terminalResistanceΩ
1-35.8 - 6.2 (at 20_C)
4-3
5-3
6-3
IDLE SPEED CONTROL SERVO (STEPPER
MOTOR) CHECK
Checking the Operation Sound
1. Check that the engine coolant temperature is 20_Cor
below.
NOTE
Disconnecting the engine coolant temperature sensor
connector and connecting the harness-side of the
connector to another engine coolant temperature sensor
that is at 20_C or below is also okay.
2. Check that the operation sound of the stepper motor
can be heard after the ignition is switched “ON” position.
(but without starting the engine.)
3. If the operation sound cannot be heard, check the stepper
motor’s activation circuit.
If the circuit is normal, it is probable that there is a
malfunction of the stepper motor or of the engine-ECU.
Resistor
(for injector)
Fuel pump relay 3
1
42
53
6
Equipment
side connector
Idle speed control
servo (stepper motor) 1
42
53
6

MPI -Injector13A-141
INJECTOR
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
DFuel Discharge Prevention (Refer to P.13A-125.)
DStrut Tower Bar Removal and Installation
(Refer to GROUP 42.)DAir Hose E, Air By-pass Hose, Air Pipe C Removal
and Installation (Refer to GROUP 15 - Intercooler.)
DFuel Leakage Check
21
3
13 5
6
7
8 9 1011 12
4
8.9±1.9N·m
8.9±1.9N·m 5.0±1.0N·m
Apply engine oil to all
moving parts during
installation.
14 15
16 12
6
5.0±1.0N·m
Removal steps
1. Control harness connector
2. Accelerator cable assembly
connection (Throttle body side)
3. Injector harness connector
"AA4. High-pressure fuel hose connection
5. O-ring
6. Fuel return hose connection
7. Vacuum sensor connector
"AA8. Fuel pressure regulator9. O-ring
10. Fuel return pipe
AA"11. Delivery pipe
12. Insulator
13. Insulator
AA""AA14. Injector
15. Grommet
16. O-ring

MPI -Throttle Body13A-143
THROTTLE BODY
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
DUnder Cover Removal and Installation
(Refer to GROUP 51 - Front Bumper.)
DEngine Coolant Draining and Supplying
(Refer to GROUP 14 - On-vehicle Service.)
DStrut Tower Bar Removal and Installation
(Refer to GROUP 42.)DAir Hose E, Air By-pass Hose, Air Pipe C Removal
and Installation (Refer to GROUP 15 - Intercooler.)
DAccelerator Cable Adjustment (Refer to GROUP 17
- On-vehicle Service.)
2
19¶3 N·m5.0¶1.0 N·m
1
34
5 6
7
5
Removal steps
1. Accelerator cable connection
2. Throttle position sensor connector
3. Idle speed control servo connector
4. Vacuum hose connection5. Water hose connection
6. Throttle body
"AA7. Throttle body gasket
INSTALLATION SERVICE POINT
"AATHROTTLE BODY GASKET INSTALLATION
Place the gasket so that the projecting part is positioned
as shown in the illustration, and then install it between the
intake manifold and the throttle body.
Up
Towards front of vehicle

MPI -Throttle Body13A-144
DISASSEMBLY AND REASSEMBLY
2.0±0.5 N•m
5
4
16
3
2
Removal steps
"AA1. Throttle position sensor
2. Idle speed control servo
3. O-ring4. Fixed SAS
5. O-ring
6. Throttle body
INSTALLATION SERVICE POINT
"AATHROTTLE POSITION SENSOR INSTALLATION
1. Set the throttle position sensor on the throttle body as
shown in illustration (1).
2. Turn and set the throttle position sensor to the position
shown in illustration (2), connect a circuit tester across
terminal No. 2 (Throttle position sensor output) and
terminal No. 4 (earth), and measure the output voltage.
Tighten the throttle position sensor with a screw at the
position where the output voltage is at the standard value.
Standard value: 0.535 - 0.735 V
(1) (2)

MPI -Throttle Body13A-145
3. After installing the Throttle position sensor, check that
the output voltage is at the standard value. If deviated
from the standard value, loosen the screw, readjust to
the standard position, and then fix. Repeat this step until
the output voltage is at the standard value.
4. Connect a circuit tester across terminal No. 1 (Throttle
position sensor power) and terminal No. 2 (Throttle
position sensor output). Check that the resistance
changes smoothly when the throttle valve is slowly moved
to the fully opened position.Throttle position
sensor output
Throttle position
sensor powerEarth
Open

FUEL SUPPLY - Fuel Tank13B-4

12
10
6 21
1
2
4
7 8
915 18
23 20
13 314
22
24 1119
5
16 175
2.5±0.5 N·m
2.5±0.5 N·m
26±4 N·m
22±4 N·m
Removal steps
1. Filler neck pipe, Filler neck vapour
pipe connection
2. Vapour pipe connection
3. Main pipe connection
4. Return pipe connection
DParking brake cable clamp (LH)
connection (Refer to GROUP 36.)
DRear wheel speed sensor (RH)
connection
(Refer to GROUP 35 - Wheel speed
sensor.)
DRear wheel speed sensor harness
connector connection
(Refer to GROUP 35 - Wheel speed
sensor.)
AA"5. Harness connector connection
AA"6. Fuel tank assembly
7. Fuel tank protector"AA8. Suction hose
"AA9. High-pressure fuel hose
10. Fuel tank pipe assembly
"AA11. High-pressure fuel hose
"BA12. Fuel tank return hose
13. Return hose
14. Fuel tank vapour hose
15. Check valve
16. Vapour hose
17. Pipe and gauge assembly
18. Plate
19. Fuel pump and gauge assembly
20. Parking
21. Fuel cut off valve assembly
22. Parking
23. Filler neck hose
24. Filler neck vapour hose