check engine MITSUBISHI LANCER EVOLUTION VI 1999 Owner's Guide

ENGINE – Throttle Body11-74
DISASSEMBLY SERVICE POINTS
ATHROTTLE POSITION SENSOR AND IDLE AIR
CONTROL MOTOR REMOVAL
(1) Do not disassemble the sensor and motor.
(2) Do not immerse solvent to clean the sensor and motor.
Clean then with shop towel.
BTHROTTLE BODY REMOVAL
(1) Do not remove the throttle body.
(2) Check if the vacuum port or passage is clogged. Use
compressed air to clean the vacuum passage.
REASSEMBLY SERVICE POINT
ATHROTTLE POSITION SENSOR INSTALLATION
(1) Install the throttle position sensor to the throttle body
as shown in the diagram.
(2) Turn throttle position sensor 90° clockwise to set it, and
tighten screws.
(3) Check the continuity between terminal No. 3 (Idle throttle
position switch) and No. 4 (Earth).
Throttle valve conditionContinuity
Fully closedConductive
Fully openNo conductive
If there is no continuity with the throttle valve fully closed,
turn the throttle position sensor counterclockwise, and
then check again.
Throttle position sensor
Earth TPS power supply
TPS outputIdle position switch

ENGINE – Turbocharger11-77
CSNAP RING INSTALLATION
Lay the assembly with the compressor cover facing down
and fit the snap ring.
Caution
Fit the snap ring with its chamfered side facing up.
DTURBINE HOUSING INSTALLATION
Install the turbine housing in relation to the dowel pin.
Caution
Use care not to damage the blades of turbine wheel.
ECOUPLING INSTALLATION
Install the coupling and tighten to the specified torque.
FWASTE GATE ACTUATOR OPERATION CHECK
Using a tester, apply a pressure of approx. 100.0 kPa to
the actuator and make sure that the rod moves.
Caution
Do not apply a pressure of more than 113.3 kPa to the
actuator. Otherwise, diaphragm may be damaged. Never
attempt to adjust the waste gate valve.
INSPECTION
TURBINE HOUSING
(1) Check the housing for traces of contact with the turbine
wheel, cracks due to overheating, pitching, deformation
and other damage. Replace with a new turbine housing
if cracked.
(2) Operate the waste gate valve lever manually to check
that the gate can be operated and closed smoothly.
Compressor
cover
Turbine wheel
assembly
Chamfered
edge
Snap ring
Dowel pin
Dowel pin hole
Coupling
Traces of contact

ENGINE – Turbocharger11-78
COMPRESSOR COVER
Check the compressor cover for traces of contact with the
compressor wheel and other damage.
TURBINE WHEEL ASSEMBLY
(1) Check the turbine and compressor wheel blades for bend,
burr, damage, corrosion and traces of contact on the
back side and replace if defective.
(2) Check the oil passage of the turbine wheel assembly
for deposit and clogging.
(3) In the case of water cooled type, check also the water
passage for deposit and clogging.
(4) Check the turbine wheel and compressor wheel for light
and smooth turning.Oil passage
Turbine wheel
Compressor
wheelWater passage

ENGINE – Alternator11-81
BROTOR INSTALLATION
After installing the rotor, remove the wire used to fix the brush.
INSPECTION
ROTOR CHECK
(1) Check the continuity between the rotor coil slip rings,
and replace the rotor if the resistance value is not at
the standard value.
Standard value: 3 – 5 Ω
(2) Check the continuity between the slip ring and core, and
if there is continuity, replace the rotor.
STATOR CHECK
(1) Check the continuity between the coil leads, and if there
is continuity, replace the stator.
(2) Check the continuity between the coil and core, and if
there is continuity, replace the stator.
Wire

ENGINE – Alternator11-82
RECTIFIERS CHECK
(1) Inspect the (+) heat sink by checking the continuity
between the (+) heat sink and stator coil lead wire
connection terminal using a tester probe.
If there is a continuity at both, the diode is short circuited,
so replace the rectifier.
(2) Inspect the (–) heat sink by checking the continuity
between the (–) heat sink and stator coil lead wire
connection terminal using a tester probe.
If there is a continuity at both, the diode is short circuited,
so replace the rectifier.
(3) Check the diode trio by connecting an ohmmeter to both
ends of each diode and check the continuity of the three
diodes.
If there is a continuity at both ends, or if there is no
continuity, the diode is damaged so replace the recitifier.
BRUSH CHECK
(1) Measure the length of the brush protrusion shown in the
illustration, and replace the brush if the measured value
is below the limit value.
Limit: 2 mm or less
(2) The brush can be removed if the solder of the brush
lead wire is removed.
(3) When installing a new brush, insert the brush into the
holder as shown in the illustration, and then solder the
lead wires.
Protrusion
length
Soldered

ENGINE – Starter Motor11-85
REASSEMBLY SERVICE POINTS
ASTOP RING / SNAP RING INSTALLATION
Using a suitable pulling tool, pull overrunnig clutch stop ring
over snap ring.
INSPECTION
COMMUTATOR CHECK
(1) Place the armature in a pair of “V” blocks and check
the runout with a dial indicator.
Standard value: 0.05 mm
Limit: 0.1 mm
(2) Measure the commutator outer diameter.
Standard value: 32.0 mm
Limit: 31.4 mm
(3) Check the undercut depth between segments.
Standard value: 0.5 mm
BRUSH HOLDER CHECK
Check the continuity between brush holder plate and brush
holder.
If there is no continuity, the brush holder is in order.
Stop ringOverrunning
clutchStop ring
Snap ring
Undercut
Segment
Mica
Brush holder

ENGINE – Starter Motor11-86
OVERRUNING CLUTCH CHECK
(1) While holding clutch housing, rotate the pinion. Drive
pinion should rotate smoothly in one direction, but should
not rotate in opposite direction. If clutch does not function
properly, replace overrunnig clutch assembly.
(2) Inspect pinion for wear or burrs. If pinion is worn or burred,
replace overrunning clutch assembly. If pinion is damaged,
also inspect ring gear for wear or burrs.
FRONT AND REAR BRACKET BUSHING CHECK
Inspect bushing for wear or burrs. If bushing is worn or burred,
replace front bracket assembly or rear bracket assembly.
BRUSH AND SPRING REPLACEMENT
(1) Brushes that are worn beyond wear limit line, or oil-soaked,
should be replaced.
(2) When replacing ground brush, slide the brush from brush
holder by prying retaining spring back.
ARMATURE TEST
ARMATURE COIL SHORT-CIRCUIT TEST
(1) Place armature in a growler.
(2) Hold a thin steel blade parallel and just above while rotating
armature slowly in growler. A shorted armature will cause
blade to vibrate and be attracted to the core. Replace
shorted armature.
ARMATURE COIL EARTH TEST
Check the insulation between each commutator segment and
armature coil core.
If there is no continuity, the insulation is in order.
Free
Lock
Wear limit line
Growler

ENGINE – Starter Motor11-87
ARMATURE COIL OPEN-CIRCUIT INSPECTION
Check the continuity between segments. If there is continuity,
the coil is in order.

13-1
FUEL
CONTENTS
MULTIPOINT INJECTION (MPI) 2. . . . . . .
GENERAL 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outline of Change 2. . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS 4. . . . . . . . . . . . . .
SEALANT 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 5. . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 6. . . . . . . . . . . . . . . . . . . . ON-VEHICLE SERVICE 68. . . . . . . . . . . . . . . .
Fuel Pump Resistor Check 68. . . . . . . . . . . . . . . .
Fuel Pump Relay No.2
Continuity Check 68. . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control Relay and Fuel Pump Relay
Continuity Check 68. . . . . . . . . . . . . . . . . . . . . . . . .
FUEL SUPPLY 69. . . . . . . . . . . . . . . . . . . . .
GENERAL 69. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outline of Change 69. . . . . . . . . . . . . . . . . . . . . . . .
FUEL TANK 69. . . . . . . . . . . . . . . . . . . . . . . . . . .

MPI – General13-3
MPI System Diagram
1 Injector
2 ISC servo
3 Fuel pressure control valve
4 Waste gate solenoid valve
5 Secondary air control solenoid valve

Control relay

Fuel pump relay

A/C relay

Ignition coil

Exhaust temperature warning lamp

Engine warning lamp

Diagnosis output

Alternator G terminal

Fan motor relay

Tachometer

Fuel pump relay No.2 1 Oxygen sensor
2 Air flow sensor
3 Intake air temperature sensor
4 Throttle position sensor
5 Idle switch
6 Camshaft position sensor
7 Crank angle sensor
8 Barometric pressure sensor
9 High temperature sensor
10 Engine coolant temperature sensor
11 Detonation sensor

Power supply voltage

Ignition switch-IG

Ignition switch-ST

Vehicle speed sensor

A/C switch

Power steering fluid pressure switch

Alternator FR signalEngine ECU
1 Oxygen sensor
2 Air flow sensor3
Intake air tem-
perature sensor
4,
5
6 Camshaft position
sensor
7 Crank angle sensor 8 Barometric
pressure sensor
9 High temperature
sensor 10 Coolant temperature sensor
11 Detonation sensor1 Injector 2 ISC servo
3 Fuel pressure
control valve
4 Waste gate
solenoid valve 5 Secondary air
control solenoid
valveCanister
Check valveFrom
fuel
tank
Throttle position
sensor (with a
built-in
idle
switch)
Secondary
air valve
AirTo fuel
tankFuel
pressure
regulatorFrom
fuel
pump
Waste gate
actuator
Catalytic converter