1991 MITSUBISHI MONTERO sensor
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![MITSUBISHI MONTERO 1991 Service Manual \
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Fluid Capacities](/manual-img/19/57332/w960_57332-720.png "MITSUBISHI MONTERO 1991 Service Manual \
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Fluid Capacities")
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Fluid Capacities
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Application Quantity
Automatic Transmission
1987-93 ...................................... 7.6 Qts. (7.2L)
1994 (3.0L SOHC) ............................. 7.6 Qts. (7.2L) \
1994 (3.0L DOHC & 3.5L) ...................... 9.0 Qts. (8.5L) \
1995 ......................................... 7.9 Qts. (7.5L)
Cooling System
1987-88 ...................................... 8.5 Qts. (8.0L)
1989-95
2.6L ........................................ 9.7 Qts. (9.2L)
3.0L ....................................... 10.0 Qts. (9.5L)
1994-95
3.5L ....................................... 10.0 Qts. (9.5L)
Differential
1987-88 ...................................... 1.9 Qts. (1.8L)
1989-94
2.6L ........................................ 1.9 Qts. (1.8L)
3.0L ........................................ 2.7 Qts. (2.6L)
1994
3.5L ........................................ 2.7 Qts. (2.6L)
1995
3.0L ........................................ 2.7 Qts. (2.6L)
3.5L ........................................ 3.3 Qts. (3.2L)
Engine Oil
1987 ......................................... 5.2 Qts. (5.0L)
1988 ......................................... 5.0 Qts. (4.8L)
1989-92 ...................................... 5.5 Qts. (5.3L)
1993-95 ...................................... 5.2 Qts. (4.9L)
Manual Transmission
1987-91 ...................................... 2.3 Qts. (2.2L)
1992 ......................................... 2.4 Qts. (2.3L)
1993-95 ...................................... 2.6 Qts. (2.5L)
Transfer Case
1987-91 ...................................... 2.3 Qts. (2.2L)
1992-95 ...................................... 2.4 Qts. (2.3L)
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110,000 MILE (176,000 KM) SERVICE (1987-90)
110,000 MILE (176,000 KM) SERVICE (1987-90) \
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Service Or Inspect
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Verify Last Major Service Was Performed
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Fuel System (Tank, Lines & Connections)
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Carburetor Or Throttle Body Mounting
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Replace
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Fuel Filter
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Fuel, Water & Vapor Hoses
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EGR Valve
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Oxygen Sensor
Page 727 of 1333
\003
K - S EN SO R R AN G E C HAR TS
1991 M it s u bis h i M onte ro
1991 ENGINE PERFORMANCE
Sensor Operating Range Charts
Chrysler Motors: Colt, Colt 200, Colt Vista,
Ram-50, Stealth, Summit,
Mitsubishi: Eclipse, Galant, Mirage, Montero,
Pickup, 3000GT
INTRODUCTION
Sensor operating range information can help determine if a
sensor is out of calibration. An out-of-calibration sensor may not set
a trouble code, but it may cause driveability problems.
SENSOR OPERATING RANGE CHARTS
NOTE: Unless stated otherwise in test procedure, perform all
voltage tests using a Digital Volt-Ohmmeter (DVOM) with a
minimum 10-megohm input impedance. For connector and
terminal identification, see L - WIRING DIAGRAMS article in
the ENGINE PERFORMANCE Section.
COOLANT TEMP SENSOR RESISTANCE TABLE ( 1)
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Temperature F (C) Ohms
Galant, Montero 3.0L, & Pickup 3.0L
32 (0) ............................. 5900
68 (20) ............................ 2500
104 (40) ........................... 2700
176 (80) ............................ 300
All Others
32 (0) ............................. 5900
68 (20) ............................ 2500
104 (40) ........................... 1100
176 (80) ............................ 300
( 1) - Measure resistance across disconnected
sensor terminals.
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EGR TEMP SENSOR RESISTANCE TABLE ( 1) ( 2) \
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Temperature F (C) Ohms
122 (50) ............................ 60-83
212 (100) .......................... 11-14
( 1) - Measure resistance across disconnected
sensor terminals.
( 2) - Specifications apply to all models
except Montero.
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INTAKE AIR TEMP SENSOR RESISTANCE TABLE ( 1) \
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Temperature F (C) Ohms
32 (0) ............................... 6000
Page 728 of 1333
68 (20) .............................. 2700
176 (80) .............................. 400
(1) - On Stealth and 3000GT, measure resistance
between terminals No. 5 and 6 of airflow
sensor connector. On all other models measure
resistance between terminals No. 4 and 6 of
airflow sensor connector.
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MOTOR POSITION SENSOR RESISTANCE TEST TERMINALS TABLE \
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Application ( 1) Terminals (2) Terminals
Colt Vista ................ 1-3 ............... 1-2
Colt, Colt 200, & Summit .. 2-3 ............... 3-5
( 1) - Measure resistance between terminals of motor
position sensor connector.
( 2) - Apply 6 volts between terminals No. 1 and 2 of
idle speed control (ISC) connector. Check
resistance between terminals of motor position
sensor when ISC motor is activated.
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MOTOR POSITION SENSOR RESISTANCE TABLE ( 1) \
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Condition Ohms
Connector Unplugged ....................... 4000-6000
6 Volts Applied ......... Resistance Changes Smoothly
(1) - See MOTOR POSITION SENSOR RESISTANCE
TEST TERMINALS table for terminal positions.
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OXYGEN SENSOR VOLTAGE TABLE ( 1) ( 2) \
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Application Volts
All Models
Lean ................................ 0.1
Rich ................................ 1.0
(1) - Measure between sensor terminal No. 1
and ground or between terminals No. 1 and 2.
( 2) - Test at normal operating temperature.
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O2 SENSOR HEATING ELEMENT RESISTANCE TABLE ( 1) \
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Application (2) Temperature: F (C) Ohms
Eclipse 2.0L Galant 2.0L, Mirage 1.6L ...... 68 (20) .......... 12\
Montero 3.0L, Pickup 3.0L & Ram-50 3.0L .... 68 (20) .......... 20\
Stealth & 3000GT 3.0L ( 3) .................. 68 (20) .......... 20
( 1) - Measure between sensor terminals No. 3 and 4.
( 2) - Information on other models not available from manufacturer.
( 3) - Stealth and 3000GT turbo models have 2 oxygen sensors.
Measure between sensor terminals No. 2 and 4 on rear sensor.
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Page 729 of 1333
![MITSUBISHI MONTERO 1991 Service Manual THROTTLE POSITION SENSOR (TPS) RESISTANCE TABLE \
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Application](/manual-img/19/57332/w960_57332-728.png "MITSUBISHI MONTERO 1991 Service Manual THROTTLE POSITION SENSOR (TPS) RESISTANCE TABLE \
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THROTTLE POSITION SENSOR (TPS) RESISTANCE TABLE \
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Application ( 1) Terminal (Ground-Output) Ohms
Colt Vista
Closed ...................... 2-1 .......... 3500-6500
Open ...................... ( 2) 2-3 ........ 3500-6500
Eclipse 2.0L (VIN R&U)
Closed ...................... 2-3 .......... 3500-6500
Open ...................... ( 2) 3-4 ........ 3500-6500
Pickup & Ram-50 3.0L
Closed ...................... 1-4 .......... 3500-6500
Open ...................... ( 2) 2-3 ........ 3500-6500
Stealth & 3000GT
Closed ...................... 4-1 .......... 3500-6500
Open ...................... ( 2) 4-2 ........ 3500-6500
All Others
Closed ...................... 1-4 .......... 3500-6500
Open ...................... ( 2) 2-4 ........ 3500-6500
( 1) - Measure across TPS terminals with connector disconnected.
( 2) - Resistance should increase smoothly.
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VEHICLE SPEED SENSOR CONTINUITY TEST TABLE ( 1) \
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Application ( 2) Continuity
All Models ............ 4 Changes Per Revolution
( 1) - Measure continuity at back of speedometer.
See L - WIRING DIAGRAMS article in the
ENGINE PERFORMANCE Section.
( 2) - With ECU connector disconnected. Turn speedometer
cable to cycle reed switch on and off.
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VEHICLE SPEED SENSOR VOLTAGE TEST TABLE ( 1) \
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Application ( 2) Volts
All Models
Ignition switch OFF ................ 1 Or Less
Ignition switch ON ................... 4.5-4.9
( 1) - Measure voltage at back of speedometer. See
L - WIRING DIAGRAMS article in the ENGINE
PERFORMANCE Section.
( 2) - With ECU connector disconnected. Turn speedometer
cable to cycle reed switch on and off.
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Page 736 of 1333
![MITSUBISHI MONTERO 1991 Service Manual Power Steering (Dexron-II)
Colt, Colt Vista, Colt 200, Mirage & Summit ...... 1.9 Qts. (.9L)\
Eclipse & Galant .................................. 1.9 Qts. (.9L)\
Montero ................](/manual-img/19/57332/w960_57332-735.png "MITSUBISHI MONTERO 1991 Service Manual Power Steering (Dexron-II)
Colt, Colt Vista, Colt 200, Mirage & Summit ...... 1.9 Qts. (.9L)\
Eclipse & Galant .................................. 1.9 Qts. (.9L)\
Montero ................")
Power Steering (Dexron-II)
Colt, Colt Vista, Colt 200, Mirage & Summit ...... 1.9 Qts. (.9L)\
Eclipse & Galant .................................. 1.9 Qts. (.9L)\
Montero .......................................... 2.2 Pts. (1.0L)\
Pickup & Ram-50 ................................... 1.9 Qts. (.9L)\
Stealth & 3000GT
2-Wheel Steering ................................ 1.9 Pts. (.9L)\
4-Wheel Steering ............................... 2.5 Pts. (1.2L)\
Transfer Case (SAE 75W-85/API GL-4)
Colt Vista ........................................ 1.5 Pts. (.7L)\
Eclipse & Galant .................................. 1.3 Pts. (.6L)\
Montero, Pickup & Ram-50 ......................... 4.7 Pts. (2.2L)\
Stealth ............................................. .3 Pt. (.2L)\
3000GT .............................................. .6 Pt. (.3L)\
(1) - Add 1.0 Pt. (.5L) with oil cooler.
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QUICK-SERVICE
SERVICE INTERVALS & SPECIFICATIONS
REPLACEMENT INTERVALS \
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Component Miles
Colt, Colt 200, Mirage & Summit
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Oil Filter ....................... 15,000
Spark Plugs ...................... 30,000
Timing Belt ...................... 60,000
Colt Vista
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
EGR Valve ( 1) .................... 50,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Oil Filter ....................... 15,000
O2 Sensor ( 1) .................... 80,000
Rear Axle Fluid .................. 30,000
Spark Plugs ...................... 30,000
Spark Plug Wires ( 1) ............. 60,000
Timing Belt ...................... 60,000
Vapor Canister ( 1) .............. 100,000
Mirage
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Filter ........................... 15,000
Spark Plugs ...................... 30,000
Timing Belt ...................... 60,000
Eclipse
Page 737 of 1333
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil
Non-Turbo ........................ 7500
Turbo ............................ 5000
Oil Filter
Non-Turbo ...................... 15,000
Turbo .......................... 10,000
Spark Plugs ...................... 30,000
Timing Belt ...................... 60,000
Galant
Air Filter ....................... 30,000
Automatic Transaxle Fluid ........ 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Fuel & Vapor Hoses ............... 50,000
Oil
Non-Turbo ........................ 7500
Turbo ............................ 5000
Oil Filter
Non-Turbo ...................... 15,000
Turbo .......................... 10,000
Rear Axle Fluid .................. 30,000
Spark Plugs ...................... 30,000
Timing & Balance Shaft Belts ..... 60,000
Montero
Air Filter ....................... 30,000
Automatic Transmission Fluid ..... 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
Front & Rear Axle Fluid .......... 30,000
Fuel Filter ...................... 50,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Oil Filter ....................... 15,000
O2 Sensor (2) .................... 80,000
Spark Plugs ...................... 30,000
Spark Plug Wires ( 2) ............. 60,000
Timing Belt ...................... 60,000
Transfer Case Fluid .............. 30,000
Vapor Canister ( 2) .............. 100,000
Pickup & Ram-50
Air Filter ....................... 30,000
Automatic Transmission Fluid ..... 30,000
Belts ............................ 30,000
Coolant .......................... 30,000
EGR Valve (2.4L) ( 2) ............. 50,000
Front & Rear Axle Fluid .......... 30,000
Fuel Filter ...................... 50,000
Fuel & Vapor Hoses ............... 50,000
Oil ................................ 7500
Oil Filter ....................... 15,000
O2 Sensor ( 2) .................... 80,000
Spark Plugs ...................... 30,000
Spark Plug Wires ( 2) ............. 60,000
Timing Belt ...................... 60,000
Transfer Case Fluid .............. 30,000
Vapor Canister ( 2) .............. 100,000
Stealth
Air Filter ....................... 30,000
Page 745 of 1333
![MITSUBISHI MONTERO 1991 Service Manual \
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Application ( 1) Ba](/manual-img/19/57332/w960_57332-744.png "MITSUBISHI MONTERO 1991 Service Manual \
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Application ( 1) Ba")
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Application ( 1) Basic ( 2) ( 3) Actual
1.5L
Colt & Colt 200 ................ 5 @ 650-850 ...... 10 @ 650-850
Mirage & Summit ................ 5 @ 650-850 ...... 10 @ 650-850
1.6L
Mirage ......................... 5 @ 650-850 ....... 8 @ 650-850
1.8L
Eclipse ........................ 5 @ 600-800 ...... 10 @ 600-800
2.0L
Colt Vista & Galant (VIN V) .... 5 @ 600-800 ...... 10 @ 600-800\
Eclipse ........................ 5 @ 650-850 ....... 8 @ 650-850
Galant
(VIN R) ...................... 5 @ 650-850 ....... 8 @ 650-850\
(VIN U) ...................... 5 @ 650-850 ...... 12 @ 650-850\
2.4L
Pickup & Ram-50 ................ 5 @ 650-850 ....... 8 @ 650-850
3.0L
Montero, Pickup & Ram-50 ....... 5 @ 600-800 ...... 15 @ 600-800
Stealth & 3000GT ............... 5 @ 600-800 ...... 15 @ 600-800
( 1) - With ignition timing adjustment connector grounded or vacuum
hose (farthest from distributor) disconnected.
( 2) - With ignition timing adjustment connector ungrounded or vacuum
hose (farthest from distributor) connected. Ignition timing may
fluctuate.
( 3) - If vehicle altitude is more than 2300 ft. above sea level,
actual timing may be advanced.
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FUEL SYSTEM
FUEL PUMP
REGULATED FUEL PRESSURE \
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At Idle w/Vacuum At Idle w/o Vacuum
Application psi (kg/cm) psi (kg/cm)
Eclipse 2.0L (VIN U)
With Man. Trans. ................. 33 (2.3) .... 36-38 (2.5-2.7\
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With Auto. Trans. ................ 33 (2.3) .... 41-46 (2.9-3.2\
)
Galant 2.0L (VIN V), Montero (3.0L),
Pickup (3.0L) & Ram-50 (3.0L) ..... 38 (2.7) .... 47-50 (3.3\
-3.5)
Stealth & 3000GT (VIN B & S) ....... 38 (2.7) .... 47-50 (3.3-3\
.5)
Stealth & 3000GT (VIN C) ........... 34 (2.8) .... 43-45 (3.0-3\
.2)
All Others ......................... 38 (2.7) .... 47-50 (3.3-3.5\
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INJECTOR RESISTANCE
INJECTOR RESISTANCE \
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Application Ohms
Non-Turbo ........................... 13-16
Turbo ................................. 2-3
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THROTTLE POSITION SENSOR (TPS)
Page 777 of 1333
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* S U SPEN SIO N U NIF O RM IN SPEC TIO N G UID ELIN ES *
1 991 M it s u bis h i M onte ro
GENERAL INFORMATION
Steering, Suspension, Wheel Alignment, Wheels and Tires
Motorist Assurance Program
Standards For Automotive Repair
All Makes and Models
INTRODUCTION TO MOTORIST ASSURANCE PROGRAM (MAP)
CONTENTS
Motorist Assurance Program (MAP)
OVERVIEW
OVERVIEW OF SERVICE REQUIREMENTS & SUGGESTIONS
Steering and Suspension
AIR RIDE SUSPENSION
AIR RIDE SUSPENSION - AIR SHOCKS AND AIR STRUTS
AIR RIDE SUSPENSION - AIR SPRING VALVES
AIR RIDE SUSPENSION - AIR SPRINGS
AIR RIDE SUSPENSION - COMPRESSORS
AIR RIDE SUSPENSION - HEIGHT SENSORS
AIR RIDE SUSPENSION - MODULES
AIR RIDE SUSPENSION - RELAYS (COMPRESSOR)
AIR RIDE SUSPENSION - SWITCHES (ON/OFF)
AIR RIDE SUSPENSION - TORSION SPRINGS (COUNTER BALANCING)
AIR RIDE SUSPENSION - TUBING
AIR RIDE SUSPENSION - WARNING LAMPS
AIR RIDE SUSPENSION - WIRING HARNESSES
BALL JOINTS
BUSHINGS
CENTER LINKS
CONTROL ARM SHAFTS
CONTROL ARMS
DRAG LINKS
ELECTRONIC RIDE CONTROL SHOCKS AND STRUTS
IDLER ARMS
KING PINS
PITMAN ARMS
POWER STEERING HOSES
POWER STEERING (HYDRAULIC) PUMPS
RADIUS ARMS
RELAY RODS
SHOCK ABSORBERS, STRUT CARTRIDGES AND STRUT ASSEMBLIES
SPINDLES
SPRINGS - COIL, LEAF AND TORSION BAR
STEEL POWER STEERING LINES
STEERING ARMS
STEERING DAMPERS
STEERING GEARS (EXCEPT RACK AND PINION)
STEERING GEARS - RACK AND PINION
STEERING KNUCKLES
STRIKE OUT BUMPERS
STRUT RODS
STRUT UPPER BEARING PLATE ASSEMBLIES
SWAY BAR LINKS
SWAY BARS