1998 MITSUBISHI MONTERO fuel pressure
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Starters
Generator .................................. Generators & Regulators
Engine Performance
Power Distribution
Generic Electronic Module (GEM) ............... Body Control Modules\
Electronic Suspension
Glow Plug Relay ................................. Engine Performance
Glow Plugs ...................................... Engine Performance
Grounds ........................................ Ground Distribution
Headlight Door Module .............................. Headlight Doors
Headlight Relay .................................. Headlight Systems
Daytime Running Lights
Headlights ....................................... Headlight Systems
Daytime Running Lights
Heated Oxygen Sensor(s) (HO2S) .................. Engine Performan\
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Heated Windshield Control Module ................ Heated Windshields
Height Sensor ................................ Electronic Suspension
Horns ..................................... Steering Column Switches
Horn Relay ................................ Steering Column Switches
Idle Air Control (IAC) Motor/Valve .............. Engine Performance\
Ignition Coil(s) ................................ Engine Performance\
Ignition Key Lock Cylinder ....................... Anti-Theft System
Ignition Module ................................. Engine Performance
Ignition Switch ................................. Power Distribution
Engine Performance
Generators & Regulators
Starters
Illuminated Entry Module .............. Illumination/Interior Lights
Illumination Lights ................... Illumination/Interior Lights
Impact Sensor ............................. Air Bag Restraint System
Inertia Fuel Shutoff Switch ..................... Engine Performance
Inhibit Relay ............................................. Starters
Instrument Cluster ........................ Analog Instrument Panels
Intake Air Temperature (IAT) Sensor ............. Engine Performance\
Interior Lights ....................... Illumination/Interior Lights
Interlock Switch .......................................... Starters
Junction Block .................................. Power Distribution
Keyless Entry Receiver ........................ Remote Keyless Entry
Key Reminder Switch ....................................... Starters
Knock Sensor .................................... Engine Performance
Lamp Control Module ................................ Exterior Lights
License Plate Lamp ................................. Exterior Lights
Lighting Control Module ................... Lighting Control Modules
Anti-Theft System
Daytime Running Lights
Headlight Systems
Lower Relay .................................. Power Convertible Top
Malfunction Indicator Light (MIL) ............... Engine Performance\
Instrument Panels
Manifold Absolute Pressure (MAP) Sensor ......... Engine Performance\
Mass Airflow (MAF) Sensor ....................... Engine Performance\
Mega Fuse .................................. Generators & Regulators
Memory Seat/Mirror Module ........................... Memory Systems
Mirror Defogger ............................... Rear Window Defogger
Moon Roof Motor .................................... Power Moon Roof
Moon Roof Relay .................................... Power Moon Roof
Multi-Function Control Module ...................... Warning Systems
Neutral Safety Switch ..................................... Starters
Oil Level Switch ................................ Engine Performance
Oil Pressure Switch/Sending Unit .......... Analog Instrument Panels
Engine Performance
Overhead Console .................................. Overhead Console
Oxygen Sensor(s) (O2S) .......................... Engine Performan\
ce
Page 820 of 1501
![MITSUBISHI MONTERO 1998 Service Manual THROTTLE POSITION (TP) SWITCH or THROTTLE POSITION (TP) SENSOR in G \
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TESTS W/CODES article.
Engine Coolant Temperature Sensor
See G - TESTS W/CODES article.
Heated Oxyge](/manual-img/19/57333/w960_57333-819.png "MITSUBISHI MONTERO 1998 Service Manual THROTTLE POSITION (TP) SWITCH or THROTTLE POSITION (TP) SENSOR in G \
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TESTS W/CODES article.
Engine Coolant Temperature Sensor
See G - TESTS W/CODES article.
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THROTTLE POSITION (TP) SWITCH or THROTTLE POSITION (TP) SENSOR in G \
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TESTS W/CODES article.
Engine Coolant Temperature Sensor
See G - TESTS W/CODES article.
Heated Oxygen Sensor
See G - TESTS W/CODES article.
Intake Air Temperature (IAT) Sensor
On all models except Eclipse 2.0L non-turbo and Mirage 1.5L,
IAT sensor is a part of volume airflow sensor assembly. On all models,
see G - TESTS W/CODES article.
Manifold Absolute Pressure Sensor
See G - TESTS W/CODES article.
Manifold Differential Pressure Sensor
See G - TESTS W/CODES article.
Power Steering Oil Pressure (PSP) Switch
On Eclipse 2.0L non-turbo, see DTC 115 in G - TESTS W/CODES -
NON-TURBO article. On all other models except Eclipse 2.0L non-turbo,
see G - TESTS W/CODES article.
Throttle Position Sensor
See G - TESTS W/CODES article.
Vehicle Speed Sensor
See G - TESTS W/CODES article.
Volume Airflow Sensor
See G - TESTS W/CODES article.
MOTORS, RELAYS & SOLENOIDS
MOTORS
Idle Air Control Motor
See G - TESTS W/CODES article.
RELAYS
ASD, Fuel Pump & MFI Relay
See G - TESTS W/CODES article.
Radiator Cooling Fan Control Relay (High & Low)
See G - TESTS W/CODES article.
SOLENOIDS
EGR Control Solenoid Valve
See EXHAUST GAS RECIRCULATION (EGR) under EMISSION SYSTEMS &
SUB-SYSTEMS.
EVAP Purge Control Solenoid Valve
See FUEL EVAPORATION under EMISSION SYSTEMS & SUB-SYSTEMS.
Fuel Pressure Regulator Control Solenoid Valve (Turbo Models)
See FUEL DELIVERY under FUEL SYSTEM.
Wastegate Control Solenoid Valve
Page 821 of 1501
See TURBOCHARGER under AIR INDUCTION SYSTEMS.
FUEL SYSTEM
FUEL DELIVERY
NOTE: For fuel system pressure testing, see
F - BASIC TESTING article.
Fuel Pressure Regulator Control Solenoid Valve (Turbo Models)
See G - TESTS W/CODES article.
FUEL CONTROL
Fuel Injectors
See G - TESTS W/CODES article.
IDLE CONTROL SYSTEM
ELECTRICAL LOAD SWITCH
3000GT (DOHC)
1) Turn ignition off. Disconnect PCM connector. See
POWERTRAIN CONTROL MODULE (PCM) LOCATION table under COMPUTERIZED
ENGINE CONTROLS. Go to next step.
2) Turn headlights on. Using DVOM, check voltage between PCM
connector terminal No. 58 and chassis ground. If battery voltage is
present, turn headlights off and go to next step. If battery voltage
is not present, check and repair circuit between headlight relay
connector and PCM connector.
3) Turn defogger switch on. Using DVOM, check voltage between
PCM connector terminal No. 58 and chassis ground. If battery voltage
is present, turn defogger switch off and go to next step. If battery
voltage is not present, check and repair circuit between defogger
relay connector and PCM connector.
4) Turn blower switch on. Using DVOM, check voltage between
PCM connector terminal No. 58 and chassis ground. If battery voltage
is present, turn blower switch off and go to next step. If battery
voltage is not present, check and repair circuit between blower switch
connector and PCM connector.
5) If battery voltage is present and preceding tests do not
show any system or component malfunction and PCM is suspected,
substitute PCM with known-good unit and retest system.
IDLE AIR CONTROL (IAC) MOTOR
For testing procedures, see G - TESTS W/CODES article.
IGNITION SYSTEM
NOTE: For basic ignition checks, see F - BASIC TESTING article.
TIMING CONTROL SYSTEMS
Camshaft Position Sensor
See G - TESTS W/CODES article.
Crankshaft Position Sensor
See G - TESTS W/CODES article.
Page 822 of 1501
Knock Sensor
See G - TESTS W/CODES article.
EMISSION SYSTEMS & SUB-SYSTEMS
EXHAUST GAS RECIRCULATION (EGR)
EGR Control Solenoid Valve
See G - TESTS W/CODES article.
FUEL EVAPORATION
EVAP Purge Control Valve
See G - TESTS W/CODES article.
EVAP Purge Control Solenoid Valve
See G - TESTS W/CODES article.
POSITIVE CRANKCASE VENTILATION (PCV)
PCV Valve
Remove PCV valve. Shake valve. Valve should rattle if moving
freely. Apply air pressure to valve. Air should flow freely in one
direction only. Connect PCV valve to vacuum hose and start engine.
Ensure vacuum is flowing through valve.
MISCELLANEOUS CONTROLS
NOTE: Although the controlled devices listed here are not
technically engine performance components, they can affect
driveability if they malfunction.
NOTE: To identify PCM A/C power supply voltage terminals, see
appropriate pin voltage chart in J - PIN VOLTAGE CHARTS
article. To identify PCM A/C power supply circuit, see
appropriate wiring diagram in L - WIRING DIAGRAMS article.
A/C Switch & Compressor Clutch Relay
Using DVOM, check A/C power supply voltage from PCM. Turn
ignition switch to OFF position. Disconnect PCM connector. Turn A/C
switch and ignition switch to ON position. Check voltage between PCM
A/C power supply terminal and chassis ground. If battery voltage is
not as present, check and repair circuit(s).
Page 823 of 1501
INSTRUMENT PANEL
1998 Mitsubishi Montero
1998 ACCESSORIES & EQUIPMENT
Mitsubishi - Instrument Panels
Eclipse, Galant, Mirage, Montero, Montero Sport, 3000GT
DESCRIPTION & OPERATION
WARNING: Deactivate air bag system before performing any service
operation. See AIR BAG RESTRAINT SYSTEMS article. Do not
apply electrical power to any component on steering column
without first deactivating air bag system. Air bag may
deploy.
Instrument cluster includes speedometer, fuel gauge and
temperature gauge. Fuel gauge has a built-in voltage limiter to keep
voltage supply to gauges at 7 volts. Some models may also have an
ammeter, oil pressure gauge, tachometer, voltmeter and/or turbo boost
pressure gauge. Oil pressure gauge uses full battery voltage.
Tachometer operates by pulse feed.
COMPONENT LOCATIONS
COMPONENT LOCATIONS TABLE \
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Component Location
Engine Coolant Temperature (ECT) Sensor
Eclipse, Galant, Montero
& Montero Sport ................. On Thermostat Housing
Mirage ........................ On Rear Of Cylinder Head
3000GT ........... On Cylinder Head, Below Ignition Coil
Input Speed Sensor
Eclipse ........................... On Side Of Transaxle
Output Speed Sensor
Eclipse ........................... On Side Of Transaxle
Vehicle Speed Sensor
Eclipse, Galant,
Mirage & 3000GT ................... On Top Of Transaxle
Montero & Montero Sport ...... On Transmission Tailshaft
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TROUBLE SHOOTING
FUEL/TEMPERATURE GAUGE NOT WORKING
Check for blown fuse, faulty voltage limiter and faulty
relay. Ensure sending unit connections are clean and tight. Test
sending unit for correct operation. Tighten connections in instrument
cluster.
SPEEDOMETER NOT WORKING
On mechanical-type speedometers, ensure speedometer cable is
properly connected and correctly routed. If speedometer pointer and/or
odometer still do not work, replace speedometer cable or speedometer
assembly.
On electric-type speedometers, check for faulty vehicle speed
sensor, input/output sensors or faulty circuit. For testing, see
Page 825 of 1501
Fig. 2: Boost Pressure Gauge Test Terminals (3000GT Turbo)
Courtesy of Mitsubishi Motor Sales of America
FUEL TANK SENDING UNIT
Resistance Test
Remove fuel tank sending unit from fuel tank. Check
resistance between appropriate terminals with fuel float in FULL and
EMPTY positions. See Fig. 3, 4, 5, 6, 7, 8 or 9. Compare resistance
reading to FUEL TANK SENDING UNIT RESISTANCE SPECIFICATIONS table. If
resistance is not as specified, replace fuel tank sending unit.
FUEL TANK SENDING UNIT RESISTANCE SPECIFICATIONS TABLE
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Application Empty Full
Eclipse
AWD ( 1)
Main ............................ 56 ........... 1-3
Sub ............................ 49-51 ......... 1-3
FWD ........................... 105-119 ........ 2-6
Galant ............................ 105-119 ........ 2-6
Mirage ............................ 102-118 .... 0.9-5.1
Montero, Montero Sport & 3000GT ... 103-117 ........ 1-5
( 1) - Equipped with a main fuel sender and a sub fuel
sender.
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FUEL GAUGE
CAUTION: Gauge coils can be damaged if wire is grounded for too long.
Perform test as quickly as possible.
Simple Test
1) Disconnect fuel gauge sending unit connector wire in
luggage compartment, in cargo space or at tank unit. Connect a 12-
volt, 3.4-watt bulb to harness side of connector between appropriate
terminals. See Fig. 3, 4, 5, 6, 7, 8 or 9.
2) Turn ignition switch to ON position. Ensure test bulb
flashes, or stays on, and fuel gauge needle moves. If bulb or gauge
needle does not function as described, repair fuel gauge circuit.
Page 965 of 1501
![MITSUBISHI MONTERO 1998 Service Manual FLUID CAPACITIES
FLUID CAPACITIES TABLE ( 1) \
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FLUID CAPACITIES
FLUID CAPACITIES TABLE ( 1) \
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Item Condition Specification
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Engine Oil Oil Pan 4.5 Qts. (4.3L)
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Oil Filter 0.32 Qts. (0.3L)
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Oil Cooler 0.32 Qts. (0.3L)
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Power Drained 1.1 Qts. (1.0L)
Steering
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Automatic Drained 8.9 Qts. (8.5L)
Transmission
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Manual Drained 3.3 Qts. (3.2L)
Transmission
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Transfer Case Drained 2.6 Qts. (2.5L)
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Front Axle Drained 1.3 Qts. (1.2L)
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Rear Axle Drained 3.3 Qts. (3.2L)
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A/C Drained 27 oz (760 g)
Refrigerant
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Fuel Tank Capacity 24 gal (92L)
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1) - Capacities are recommended or calculated levels. Always use
dipstick to measure level.
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WHEEL & TIRE SPECIFICATIONS
Tire specifications are imprinted on the tire side wall. The
recommended cold tire inflation pressures are listed on a label
attached to the rear face of the driver's door. These pressures
provide the best combination of ride comfort, tire wear and stability
under normal conditions.
CAUTION: DO NOT mix tires of different design such as radial ply
with bias or bias-belted tires. Mixing tire types will
adversely affect road handling and may lead to loss of
vehicle control. When using snow tires, they must be used
in set of four for maneuverability and safety. DO NOT use
tire chains on front wheels.
TIRE & WHEEL SPECIFICATIONS TABLE
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Wheel Size Tire Size
15 x 6JJ (Steel or Aluminum) .................. P235/75R15
15 X 7JJ (Aluminum) ........................... P265/70R15
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WHEEL TIGHTENING
Page 969 of 1501
thoroughly with soap and water.
CAUTION: Never use non-detergent or straight mineral oil.
FUEL SYSTEM SERVICE
WARNING: Relieve fuel system pressure prior to servicing any fuel
system component (fuel injection models).
HALOGEN BULBS
Halogen bulbs contain pressurized gas which may explode if
overheated. DO NOT touch glass portion of bulb with bare hands. Eye
protection should be worn when handling or working around halogen
bulbs.
RADIATOR CAP
CAUTION: Always disconnect the fan motor when working near the
radiator fan. The fan is temperature controlled and could
start at any time even when the ignition key is in the OFF
position. DO NOT loosen or remove radiator cap when cooling
system is hot.
RADIATOR FAN
WARNING: Keep hands away from radiator fan. Fan is controlled by a
thermostatic switch which may come on or run for up to 15 minutes even
after engine is turned off.
WARRANTY INFORMATION
CAUTION: Due to the different warranties offered in various regions
and the variety of after-market extended warranties
available, please refer to the warranty package that came
with the vehicle to verify all warranty options.
FUSES & CIRCUIT BREAKERS
FUSE PANEL LOCATION
The electrical system is protected against shorts by fuses
that are designed to fail, to prevent damage to the wire harness. The
fuse block is located under the instrument panel on the driver's side.
If a fuse is blown, locate the cause before replacing the fuse. Spare
fuses are contained in the fuse block.
FUSE PANEL IDENTIFICATION
Fuse & Circuit Breaker Identification
PASSENGER COMPARTMENT