Mitsubishi Montero (1998+). Manual - part 206

         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.

         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).

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

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

         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

SPEEDOMETER TEST under COMPONENT TESTS. Repair or replace as

necessary.

         TACHOMETER NOT WORKING

         Tachometer is serviced as an assembly. If wiring harness is

okay, replace tachometer assembly.

         WARNING LIGHTS NOT WORKING

         Test for defective sending unit, burned-out bulb and broken

printed circuit. Ensure all connections are clean and tight.

         COMPONENT TESTS

         BOOST PRESSURE GAUGE (TURBO)

         Resistance Test (Eclipse & 3000GT)

         1) Remove instrument cluster from instrument panel. See

INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. On 3000GT, remove air

distribution duct and combination gauges.

         2) On all models, check resistance between boost pressure

gauge terminals on back of instrument cluster or combination gauges.

See Fig. 1 or 2. Resistance should be 68.2-83.4 ohms on Eclipse, or 72

ohms on 3000GT. If resistance is not as specified, replace gauge.

Fig. 1:  Boost Pressure Gauge Test Terminals (Eclipse Turbo)

Courtesy of Mitsubishi Motor Sales of America