fuel MITSUBISHI MONTERO 1998 Service Manual
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 1998, Model line: MONTERO, Model: MITSUBISHI MONTERO 1998Pages: 1501, PDF Size: 25.81 MB
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 826 of 1501
Fig. 3: Fuel Gauge Test Connections (Eclipse FWD & Galant)
Courtesy of Mitsubishi Motor Sales of America
Fig. 4: Identifying Fuel Gauge Test Connections (Eclipse AWD - Main)
Courtesy of Mitsubishi Motor Sales of America
Page 827 of 1501
Fig. 5: Identifying Fuel Gauge Test Connections (Eclipse AWD - Sub)
Courtesy of Mitsubishi Motor Sales of America
Fig. 6: Identifying Fuel Gauge Test Connections (Mirage)
Courtesy of Mitsubishi Motor Sales of America
Page 828 of 1501
Fig. 7: Identifying Fuel Gauge Test Connections (Montero)
Courtesy of Mitsubishi Motor Sales of America
Fig. 8: Identifying Fuel Gauge Test Connections (Montero Sport)
Courtesy of Mitsubishi Motor Sales of America
Page 829 of 1501
Fig. 9: Identifying Fuel Gauge Test Connections (3000GT)
Courtesy of Mitsubishi Motor Sales of America
NOTE: Fuel gauge resistance test must be completed with instrument
panel cluster removed. Use ohmmeter for all measurements. If
resistance is extremely low, a short may exist in coil. If
resistance is extremely high, a broken wire or similar
Page 830 of 1501
problem may exist in gauge.
Resistance Test
1) Remove instrument cluster. See INSTRUMENT CLUSTER under
REMOVAL & INSTALLATION. On 3000GT, remove air distribution duct and
combination gauges.
2) On all models, check resistance between appropriate
terminals of instrument cluster or combination gauges. See Fig. 10,
11, 12, 13, 14, 15 or 16. See FUEL GAUGE RESISTANCE SPECIFICATIONS
table. If resistance readings are not as specified, replace fuel
gauge.
FUEL GAUGE RESISTANCE SPECIFICATIONS TABLE
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Application ( 1) Terminals Ohms
Eclipse ............... "A" & "B" .............. 219-279
Eclipse ............... "A" & "C" .............. 102-152
Eclipse ............... "B" & "C" .............. 112-132
Galant ................ "A" & "B" ................... 99
Galant ................ "A" & "C" .................. 262
Galant ................ "B" & "C" .................. 163
Mirage ................ "A" & "B" ................ 80-98
Mirage ................ "A" & "C" .............. 173-211
Mirage ................ "B" & "C" ............... 93-113
Montero ............... No. 4 & 8 .............. 104-127
Montero ............... No. 4 & 6 .............. 132-162
Montero ............... No. 6 & 8 ................ 71-87
Montero Sport ......... "A" & "B" ................... 85
Montero Sport ......... "A" & "C" .................. 107
Montero Sport ......... "B" & "C" .................. 192
3000GT ................ "A" & "B" .................. 254
3000GT ................ "A" & "C" .................. 101
3000GT ................ "B" & "C" .................. 153
( 1) - For terminal locations, see Fig. 10, 11, 12, 13, 14,
15 or 16.
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Fig. 10: Identifying Instrument Panel Fuel Gauge Resistance Check
Terminals (Eclipse)
Courtesy of Mitsubishi Motor Sales of America
Page 831 of 1501
Fig. 11: Identifying Instrument Panel Fuel Gauge Resistance Check
Terminals (Galant)
Courtesy of Mitsubishi Motor Sales of America
Fig. 12: Identifying Instrument Panel Fuel Gauge Resistance Check
Terminals (Mirage - With Tachometer)
Courtesy of Mitsubishi Motor Sales of America
Page 832 of 1501
Fig. 13: Identifying Instrument Panel Fuel Gauge Resistance Check
Terminals (Mirage - Without Tachometer)
Courtesy of Mitsubishi Motor Sales of America
Fig. 14: Identifying Instrument Panel Fuel Gauge Resistance Check
Terminals (Montero)
Courtesy of Mitsubishi Motor Sales of America