2007 MITSUBISHI LANCER EVOLUTION lock

MPI -Troubleshooting13A-121
IDLE SPEED CONTROL SERVO (STEPPER MOTOR)
Measurement Method
1. Disconnect the idle speed control servo connector, and
connect the special tool (test harness: MB991709) in
between.
2. Connect the analyzer special patterns pickup to the idle
speed control servo-side connector terminal No. 1,
terminal No. 3, terminal No. 4 and terminal No. 6
respectively.
Alternate Method (Test harness not available)
1. Connect the analyzer special patterns pickup to
engine-ECU terminal No. 4, connection terminal No. 5,
connection terminal No. 17, and connection terminal No.
18 respectively.
Standard Wave Pattern
Observation conditions
FunctionSpecial patterns
Pattern heightHigh
Pattern selectorDisplay
Engine conditionWhen the engine coolant temperature is 20_C or below, turn the ignition switch from “LOCK”
(OFF) position to “ON” position (without starting the engine).
While the engine is idling, turn the A/C switch to ON.
Immediately after starting the warm engine
Standard wave pattern
Stepper
motor
control
signal
wave
pattern(V)
30
20
10The wave pattern
appears for an
instant, but soon
disappears.Point B
Coil reverse electromotive
force (Approx. 3×10 V)Point A
Induced electromotive force
from the motor turning
Time
Special
patterns
pickupAnalyzer

MPI -On-vehicle Service13A-127
4. If not within the standard value, loosen the throttle position
sensor mounting bolts. Then rotate the sensor body to
adjust.
5. Turn the ignition switch to “LOCK” (OFF) position.
6. Remove the MUT-II. If the MUT-IIis not used, remove
the special tool, and then connect the throttle position
sensor connector.
7. If a diagnosis code is displayed, erase the diagnosis code
by using the MUT-IIor disconnect the negative battery
cable from the battery terminal and then leave it for at
least ten seconds. After that, reconnect the battery cable,
and then let the engine run at idle for approximately 10
minutes.
BASIC IDLE SPEED ADJUSTMENT
NOTE
(1) The basic idling speed has been adjusted by the
speed adjusting screw by the manufacturer, and there
should usually be no need for readjustment.
(2) If the adjustment has been changed by mistake, the
idle speed may become too high or the idle speed
may drop too low when loads from components such
as the A/C are placed on the engine. If this occurs,
adjust by the following procedure.
(3) The adjustment, if made, should be made after first
confirming that the spark plugs, the injectors, the idle
speed control servo, the compression pressure, etc.,
are all normal.
1. Before inspection and adjustment, set the vehicle to the
pre-inspection condition.
2. Connect the MUT-IIto the diagnosis connector (16-pin).
NOTE
When the MUT-IIis connected, the diagnosis control
terminal should be earthed.
3. Start the engine and run at idle.
4. Select the item No. 30 of the MUT-IIActuator test.
NOTE
This holds the idle speed control servo at the basic step
to adjust the basic idle speed.
5. Check the basic idle speed.
Standard value: 850±100 r/min
NOTE
(1) The engine speed may be 20 to 100 r/min lower
than indicated above for a new vehicle [driven
approximately 500 km or less], but no adjustment
is necessary.
(2) If the engine stalls or the engine speed is low even
though the vehicle has been driven approximately
500 km or more, it is probable that deposits are
adhered to the throttle valve, so clean it. (Refer to
P.13A-126.)

MPI -On-vehicle Service13A-128
6. If not within the standard value range, turn the speed
adjusting screw to make the necessary adjustment.
7. Press the MUT-IIclear key, and release the idle speed
control servo from the Actuator test mode.
NOTE
Unless the idle speed control servo is released, the
Actuator test mode will continue 27 minutes.
8. Turn the ignition switch to “LOCK” (OFF) position.
9. Disconnect the MUT-II.
10. Start the engine again and let it run at idle speed for
approximately 10 minutes; check that the idling condition
is normal.
FUEL PRESSURE TEST
1. Release residual pressure from the fuel pipe line to prevent
fuel gush out. (Refer to P.13A-125.)
2. Disconnect the high-pressure fuel hose at the delivery
pipe side.
Caution
Cover the hose connection with rags to prevent splash
of fuel that could be caused by some residual pressure
in the fuel pipe line.
3. Remove the union joint and bolt from the special tool
(adapter hose) and instead attach the special tool (hose
adapter) to the adapter hose.
4. Install the special tool (for measuring the fuel pressure)
that was set up in step 3.

(1) Install the special tool (for measuring the fuel pressure)
between the high-pressure fuel hose and the delivery
pipe.
(2) Install the fuel pressure gauge set (special tool) on
the special tool (for measuring the fuel pressure)
putting the gasket between them.
(3) Connect the lead wire of the fuel pressure gauge
set (special tool) to the power supply (cigarette lighter
socket) and to the MUT-II.
MB991637
Gasket
MD998709
MD998742
High-pressure
fuel hose
Delivery
pipe

MPI -On-vehicle Service13A-129

(1) Install the fuel pressure gauge on the special tool
(for measuring the fuel pressure) putting a suitable
O-ring or gasket between them.
(2) Install the special tool which was set up in step (1)
between the high-pressure fuel hose and the delivery
pipe.
5. Connect the MUT-IIto the diagnosis connector.
6. Turn the ignition switch to “ON” position. (But do not start
the engine.)
7. Select “Item No. 07” from the MUT-IIActuator test to
drive the fuel pump. Check that there are no fuel leaks
from any parts.
8. Finish the actuator test or turn the ignition switch to “LOCK”
(OFF) position.
9. Start the engine and run at idle.
10. Measure fuel pressure while the engine is running at
idle.
Standard value: Approximately 230 kPa at cerb idle
11. Disconnect the vacuum hose from the fuel pressure
regulator and measure fuel pressure with the hose end
closed by a finger.
Standard value: 289 - 309 kPa at cerb idle
12. Check to see that fuel pressure at idle does not drop
even after the engine has been raced several times.
13. Racing the engine repeatedly, hold the fuel return hose
lightly with fingers to feel that fuel pressure is present
in the return hose.
NOTE
If the fuel flow rate is low, there will be no fuel pressure
in the return hose.Fuel pressure gauge set
O-ring or gasket
MD998709
MD998742
High-pressure
fuel hose
Delivery
pipe

MPI -On-vehicle Service13A-133
3. Measure resistance while heating the sensor using a hair
drier.
Normal condition:
Temperature (_C)Resistance (kΩ)
HigherSmaller
4. If the value deviates from the standard value or the
resistance remains unchanged, replace the air flow sensor
assembly.
ENGINE COOLANT TEMPERATURE SENSOR
CHECK
Caution
Be careful not to touch the connector (resin section) with
the tool when removing and installing.
1. Remove the engine coolant temperature sensor.
2. With temperature sensing portion of engine coolant
temperature sensor immersed in hot water, check
resistance.
Standard value:
14 - 17 kΩ(at - 20_C)
5.1 - 6.5 kΩ(at 0_C)
2.1 - 2.7 kΩ(at 20_C)
0.9 - 1.3 kΩ(at 40_C)
0.48 - 0.68 kΩ(at 60_C)
0.26 - 0.36 kΩ(at 80_C)
3. If the resistance deviates from the standard value greatly,
replace the sensor.
4. Apply sealant to threaded portion.
Specified sealant:
3M NUT Locking Part No. 4171 or equivalent
5. Install the engine coolant temperature sensor and tighten
it to the specified torque.
Tightening torque: 29±9 N·m
Intake air
temperature
sensor
Engine coolant
temperature sensor
Equipment
side connector
12

ENGINE COOLING -GeneralInformation/
Service Specifications/Lubricant/Sealant14-2
GENERAL INFORMATION
The cooling system is designed to keep every part
of the engine at appropriate temperature in
whatever condition the engine may be operated.
The cooling method is of the water-cooled, pressure
forced circulation type in which the water pump
pressurizes coolant and circulates it throughout the
engine. If the coolant temperature exceeds the
prescribed temperature, the thermostat opens to
circulate the coolant through the radiator as well
so that the heat absorbed by the coolant may be
radiated into the air.The water pump is of the centrifugal type and is
driven by the drive belt from the crankshaft.
The radiator is the corrugated fin, down flow type.
The cooling fan is controlled by the radiator fan
controller and engine-ECU depend on driving
conditions.
ItemSpecification
Radiator performance kJ/h216,700
SERVICE SPECIFICATIONS
ItemsStandard valueLimit
Radiator cap opening pressure kPa93 - 12383
Range of coolant antifreeze concentration of radiator %30 - 60-
ThermostatValve opening temperature of thermostat_C80±1.5-
Full-opening temperature of thermostat_C93-
Valve lift (at 93_C) mm9.5 or more-
LUBRICANT
ItemSpecified coolantQuantity L
Engine coolantMITSUBISHI GENUINE COOLANT or equivalent6.0Enginecoolant
(including reserve tank)
MITSUBISHIGENUINECOOLANTorequivalent6.0
SEALANT
ItemSpecified sealantRemark
Cylinder block drain plug3M Nut Locking Part No. 4171 or equivalentDrying sealant

ENGINE COOLING -On-vehicle ServiceENGINE COOLING -On-vehicle Service14-7
3. Remove the cylinder block drain plug from the cylinder
block to drain the engine coolant.
4. Remove the reserve tank to drain the engine coolant.
5. When the engine coolant has drained, pour in water from
the radiator cap to clean the engine coolant line.
6. Coat the thread of the cylinder block drain plug with the
specified sealant and tighten to the specified torque.
Specified sealant:
3M Nut Locking Part No. 4171 or equivalent
7. Securely tighten the radiator drain plug.
8. Install the under cover.
(Refer to GROUP 51 - Front Bumper.)
9. Install the reserve tank.
10. Slowly pour the engine coolant into the mouth of the
radiator until the radiator is full, and pour also into the
reserve tank up to the FULL line.
Recommended anti-freeze:
MITUBISHI GENUINE COOLANT or equivalent
Quantity: 6.0 L
Caution
Do not use alcohol or methanol anti-freeze or any
engine coolants mixed with alcohol or methanol
anti-freeze. The use of an improper anti-freeze can
cause the corrosion of the aluminium components.
11. Install the radiator cap securely.
12. Start the engine and warm the engine until the thermostat
opens. (Touch the radiator hose with your hand to check
that warm water is flowing.)
13. After the thermostat opens, race the engine several times,
and then stop the engine.
14. Cool down the engine, and then pour engine coolant into
the reserve tank until the level reaches the FULL line. If
the level is low, repeat the operation from step 11.
CONCENTRATION MEASUREMENT
Measure the temperature and specific gravity of the engine
coolant to check the antifreeze concentration.
Standard value: 30 - 60 % (allowable concentration range)
RECOMMENDED ANTI-FREEZE
AntifreezeAllowable concentration
MITSUBISHI GENUINE COOLANT
or equivalent30 - 60 %
Caution
If the concentration of the anti-freeze is below 30 %, the
anti-corrosion property will be adversely affected. In
addition, if the concentration is above 60 %, both the
anti-freezing and engine cooling properties will decrease,
affecting the engine adversely. For these reasons, be
sure to maintain the concentration level within the
specified range.
44±5N·m
Water inlet
pipe

ENGINE ELECTRICAL -Charging System16-4
ON-VEHICLE SERVICE
ALTERNATOR OUTPUT LINE VOLTAGE DROP TEST
Alternator
Terminal BVoltmeterAmmeter
Battery
+-
+-
This test determines whether the wiring from the
alternator “B” terminal to the battery (+) terminal
(including the fusible line) is in a good condition
or not.
(1) Always be sure to check the following before
the test.
DAlternator installation
DAlternator drive belt tension
(Refer to GROUP 11 - On-vehicle Service.)
DFusible link
DAbnormal noise from the alternator while
the engine is running
(2) Turn the ignition switch to the “LOCK” (OFF)
position.
(3) Disconnect the negative battery cable.
(4) Disconnect the alternator output wire from the
alternator “B” terminal and connect a DC test
ammeter with a range of 0 - 100 A in seriesbetween the “B” terminal and the disconnected
output wire. (Connect the (+) lead of the
ammeter to the “B” terminal, and then connect
the ( - ) lead of the ammeter to the disconnected
output wire.)
NOTE
An inductive-type ammeter which enables
measurements to be taken without
disconnecting the alternator output wire should
be recommended. Using this equipment will
lessen the possibility of a voltage drop caused
by a loose “B” terminal connection.
(5) Connect a digital-type voltmeter between the
alternator “B” terminal and the battery (+)
terminal. (Connect the (+) lead of the voltmeter
to the “B” terminal and the connect the ( - ) lead
of the voltmeter to the battery (+) cable.)