fuel MITSUBISHI MONTERO 1998 User Guide (1501 Pages)

RVB Rear Vacuum Break

RWAL Rear Wheel Anti-Lock Brake

RWD Rear Wheel Drive

Recirc. Recirculate or Recirculation

Reg. Regulator

Rly. Relay

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"S" ABBREVIATION TABLE
"S" ABBREVIATION TABLE\
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ABBREVIATION DEFINITION

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SAW Spark Angle Word

SBC Single Bed Converter

SBEC Single Board Engine Controller

SC Super Charged

SCC Spark Control Computer

SCS Air Suction Control Solenoid

SDM Supplemental Restraint System Diagnostic Module

SDU SRS Diagnostic Unit

SEN Sensor

SES Service Engine Soon

SFI Sequential (Port) Fuel Injection

SIG RTN Signal Return circuit

SIL Shift Indicator Light

SIR Supplemental Inflatable Restraint

SMEC Single Module Engine Controller

SOHC Single Overhead Cam

SOL or Sol. Solenoid

SPFI Sequential Port Fuel Injection

SPK Spark Control

SPOUT Spark Output Signal

SRS Supplemental Restraint System (Air Bag)

SS 3/4-4/3 Shift Solenoid circuit

SSI Solid State Ignition

STAR Self-Test Automatic Readout

STI Self Test Input circuit

STO Self-Test Output

SUB-O2 Sub Oxygen Sensor

Sen. or Sens. Sensor

Sol. Solenoid

Sprchg. Supercharger

Strg. Steering

Susp. Suspension

Sw. Switch

Sys. System

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"T" ABBREVIATION TABLE
"T" ABBREVIATION TABLE\
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ABBREVIATION DEFINITION

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T.V. Throttle Valve

TAB Thermactor Air By-Pass

TAC Thermostatic Air Cleaner

TAD Thermactor Air Diverter

TAN Tan

TBI Throttle Body Injection

Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Wire lead conductors
exposed ................ B .. Require repair or replacement.
Wire lead corroded ...... A .. Require repair or replacement.
Wire lead open .......... A .. Require repair or replacement.
Wire lead shorted ....... A .. Require repair or replacement.
(1) - Refer to manufacturer's diagnostic trouble code
procedure and require repair or replacement of
affected component(s).
( 2) - Determine cause and correct prior to repair or
replacement of part.
( 3) - Determine source of contamination, such as engine coolant,
fuel, metal particles, or water. Require repair or
replacement. Check for accepted cleaning procedure.
( 4) - Inoperative includes intermittent operation or out of
OEM specification. Some components may be serviceable.
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COOLANT
COOLANT INSPECTION\
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Condition Code Procedure
Acidity (pH) incorrect .. 1 ........... Suggest correction or
replacement.
Contaminated ............ B ...... ( 1) Require replacement or
recycling. Further
inspection required.
Level incorrect ......... B .......... ( 2) Require filling to
proper level.
Maintenance intervals ... 3 ........ ( 3) Suggest replacement.
Mixture incorrect ....... B ........... Require correction or
replacement.
Type incorrect .......... B ............ Require replacement.
( 1) - Determine source of contamination and require correction
prior to coolant replacement.
( 2) - Determine source of incorrect level and suggest repair.
( 3) - The system should be drained and/or flushed and
refilled with correct coolant according to OEM
recommended service interval and procedures.
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COOLING FAN BLADES
COOLING FAN BLADE INSPECTION\
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Condition Code Procedure
Application incorrect ... B ............ Require replacement.
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.

B - EMISSION APPLICATION
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - Emission Applications
Diamante, Eclipse/Spyder, Galant, Mirage, Montero/Sport,
3000GT
EMISSION APPLICATIONS
EMISSION APPLICATIONS TABLE\
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Model, Engine & Fuel System Emission Control Systems/Devices
Diamante
3.5L V6 SFI
Major Control Systems/Devices .... PCV, EVAP, TWC, FR, EGR, SPK,
( 1) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, EGR-CS, EGR-VCV, SPK-CC
Eclipse
2.0L 4-Cyl. SFI
Non-Turbo
Major Control Systems/Devices ....... PCV, EVAP, TWC, FR, EGR,
SPK, ( 1) HO2S, CEC, MIL
Components/Other Related Devices ......... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, EGR-TS, SPK-CC
Turbo
Major Control Systems/Devices PCV, EVAP, TWC, FR, EGR,
SPK, ( 1) HO2S, CEC, MIL
Components/Other Related Devices .... (2) EVAP-CKV, EVAP-CPCS,
EVAP-CPCV, EVAP-VC, EVAP-VSOL, EGR-SOL, SPK-CC
Eclipse Spyder
2.0L 4-Cyl. Turbo SFI
Major Control Systems/Devices ......... PCV, EVAP, TWC, FR, EGR,
SPK, ( 1) HO2S, CEC, MIL
Components/Other Related Devices ..... (2) EVAP-CKV, EVAP-CPCS,
EVAP-CPCV, EVAP-VC, EVAP-VSOL, EGR-SOL, SPK-CC
2.4L 4-Cyl. SFI
Major Control Systems/Devices ......... PCV, EVAP, TWC, FR, EGR,
SPK, ( 1) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, EGR-SOL, EGR-VCV, SPK-CC
Galant
2.4L 4-Cyl. SFI
Major Control Systems/Devices .......... PCV, EVAP, (3) TWC, FR,
( 4) EGR, SPK, ( 1) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, ( 4) EGR-CS, ( 4) EGR-VCV, SPK-CC
Mirage
1.5L 4-Cyl. SFI
Major Control Systems/Devices .......... PCV, EVAP, (3) TWC, FR,
EGR, SPK, ( 1) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, EGR-SOL, EGR-VCV, SPK-CC
1.8L 4-Cyl. SFI
Major Control Systems/Devices .... PCV, EVAP, TWC, FR, EGR, SPK,
( 1) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, EGR-SOL, EGR-VCV, SPK-CC
Montero
3.5L V6 SFI

Major Control Systems/Devices ..... PCV, EVAP, (5) TWC, ( 4) EGR,
FR, SPK, ( 6) ( 7) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, ( 4) EGR-SOL, ( 4) EGR-VCV, SPK-CC
Montero Sport
2.4L 4-Cyl. SFI
Major Control Systems/Devices ..... PCV, EVAP, TWC, FR, ( 4) EGR,
SPK, ( 1) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VSOL, ( 4) EGR-SOL, ( 4) EGR-VCV, SPK-CC
3.0L V6 SFI
Major Control Systems/Devices ..... PCV, EVAP, TWC, (4) EGR, FR,
SPK, ( 6) ( 7) HO2S, CEC, MIL
Components/Other Related Devices ........... EVAP-CPCS, EVAP-VC,
EVAP-VCS, EVAP-VSOL, ( 4) EGR-VCS, SPK-CC
3000GT
3.0L V6 SFI
Non-Turbo
Major Control Systems/Devices ........ PCV, EVAP, (8) TWC, FR,
EGR, SPK, ( 9) HO2S, CEC, MIL
Components/Other Related Devices ......... EVAP-CPCS, EVAP-VC,
EGR-SOL, EGR-VCV, SPK-CC
Turbo
Major Control Systems/Devices ........ PCV, EVAP, (8) TWC, FR,
EGR, SPK, ( 9) HO2S, CEC, MIL
Components/Other Related Devices ........ EVAP-CKV, EVAP-CPCS,
EVAP-VC, EGR-SOL, EGR-VCV, SPK-CC
( 1) - Equipped with 2 HO2Ss.
( 2) - Equipped with 2 EVAP-CKVs.
( 3) - California equipped with 2 TWCs.
( 4) - Federal.
( 5) - California equipped with 3 TWCs.
( 6) - Federal equipped with 2 HO2Ss.
( 7) - California equipped with 4 HO2Ss.
( 8) - Equipped with 3 TWCs.
( 9) - Equipped with 4 HO2Ss.
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NOTE: California or Federal refers to installed emissions
equipment. California emissions models may be available in
all states.
APPLICATION ABBREIVEATIONS
APPLICATION ABBREIVEATIONS TABLE\
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Application Abbreiveation
CEC .................................... Computerized Engine Control
EGR ...................................... Exhaust Gas Recirculation
EGR-CS ........................................ EGR Control Solenoid
EGR-SOL ............................................... EGR Solenoid
EGR-TS ..................................... EGR Transducer Solenoid
EGR-VCV ................................... EGR Vacuum Control Valve
EVAP ....................................... Fuel Evaporative System
EVAP-CKV .......................................... EVAP Check Valve
EVAP-CPCS ..................... EVAP Canister Purge Control Solenoid
EVAP-CPCV ........................ EVAP Canister Purge Control Valve
EVAP-VC ........................................ EVAP Vapor Canister
EVAP-VCS .............................. EVAP Vacuum Control Solenoid
EVAP-VSOL ................................ EVAP Ventilation Solenoid

FR ............................................ Fill Pipe Restrictor
HO2S .......................................... Heated Oxygen Sensor
MIL .................................... Malfunction Indicator Light
PCV ................................. Positive Crankcase Ventilation
SFI ............................ Sequential Multiport Fuel Injection
SPK ................................................. Spark Controls
SPK-CC ..................................... SPK Computer Controlled
TWC .................................. Three-Way Catalytic Converter
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same axle to eliminate uneven braking behavior. Always wash drums
after servicing or before installing.
DRUM INSPECTION
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Condition Code Procedure
Balance weight missing .. .. ........ No service suggested or
required.
Bell-mouthed, affecting
performance ............ A ....... Require reconditioning or
replacement.
Cooling fin broken ...... .. ........ No service suggested or
required.
Cracked ................. B ............ Require replacement.
Drum diameter is greater
than OEM "machine to"
specifications but less
than "discard at"
specifications, and the
drum does not require
reconditioning ......... 1 ........ (1) Suggest replacement.
Drum diameter will exceed
OEM "machine to"
specifications after
required
reconditioning ......... B ........ ( 2) Require replacement.
Hard-spotted ............ 2 ....... Suggest reconditioning or
replacement.
Measured diameter is
greater than OEM discard
specifications ......... B ............ Require replacement.
Out-of-round (runout),
affecting performance .. A ....... Require reconditioning or
replacement.
Out-of-round (runout),
exceeding manufacturer's
specifications ......... B ....... Require reconditioning or
replacement.
Scored .................. B ....... Require reconditioning or
replacement.
Surface threaded due to
improper machining ..... B ....... Require reconditioning or
replacement.
Tapered, affecting
performance ............ A ....... Require reconditioning or
replacement.
( 1) - Only applies to vehicles for which OEM "machine to"
specifications exist. If OEM does not supply "machine to"
specifications, the drum may be worn to discard
specifications.
( 2) - If OEM does not supply "machine to" specifications, you
may machine to discard specifications.
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ELECTRICAL PUMPS AND MOTORS
Copied fuel pump conditions from engine UIGs & deleted
pulsator from leaking conditions.
ELECTRICAL PUMP AND MOTOR INSPECTION
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NOTE: Copied Vehicle Speed Sensors from Engine UIGs & added
Air Gap incorrect, loose, and wire lead misrouted. For
"contaminated" removed coolant & fuel examples from note.
SPEED SENSOR INSPECTION
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Condition Code Procedure
Air gap incorrect ....... B ....... (1) Require adjustment or
replacement.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware
threads damaged ........ A ... Require repair or replacement
of hardware.
Attaching hardware
threads stripped
(threads missing) ...... A .. Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector (Weatherpack
type) leaking ........... A .. Require repair or replacement.
Connector melted ........ A ........... ( 2) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Contaminated ............ A ........... ( 3) Require repair or
replacement.
Inoperative ............. B ........... ( 4) Require repair or
replacement. Further
inspection required.
Lead routing incorrect .. B ..... Require rerouting according
to vehicle manufacturer's
specifications.
Leaking ................. A .. Require repair or replacement.
Loose ................... A .. Require repair or replacement.
Missing ................. C ............ Require replacement.
Resistance out of
specification .......... B .. Require repair or replacement.
Sensor housing cracked .. 2 ............ Suggest replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned,
affecting performance .. A ........... ( 2) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose,
affecting performance .. B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped
(threads missing) ...... A ............ Require replacement.
Wire lead conductors
exposed ................ B .. Require repair or replacement.
Wire lead corroded ...... A .. Require repair or replacement.
Wire lead misrouted ..... B . Require re-routing according to
vehicle manufacturer's

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Application ( 1) Basic ( 2) ( 3) ( 4) Actual
1.5L ............. 2-78@ 650-750 .......... 10 @ 600-800
1.8L ............. 2-8 @ 600-800 ........... 5 @ 600-800
2.0L
Non-Turbo ........... ( 5) ........................ ( 5)
Turbo .......... 2-8 @ 650-850 ........... 8 @ 650-850
2.4L ............. 2-8 @ 650-850 .......... 10 @ 650-850
3.0L ............. 2-8 @ 600-800 .......... 15 @ 600-800
3.5L ............. 2-8 @ 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.
( 3) - If vehicle altitude is more than 2300 feet above sea
level, actualtiming may be advanced (5 degrees).
( 4) - Actual ignition timing is approximate and may
fluctuate plus or minus 7 degrees.
( 5) - Ignition timing is NOT adjustable.
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FUEL SYSTEM
FUEL PUMP
REGULATED FUEL PRESSURE TABLE\
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At Idle w/Vacuum At Idle w/o Vacuum
Application psi (kg/cm) psi (kg/cm)
Eclipse 2.0L
Non-Turbo ............ ( 1) ........... 47-50 (3.3-3.5)
Turbo ............. 33 (2.3) ......... 42-45 (3.0-3.5)
3000GT Turbo ........ 34 (2.4) ......... 43-45 (3.0-3.1)
All Other Models .... 38 (2.7) ......... 47-50 (3.3-3.5)
( 1) - Information is not available from manufacturer at time
of publication.
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IDLE SPEED
IDLE SPEED SPECIFICATIONS TABLE\
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Application Curb Idle Basic Idle
1.5L & 1.8L ............ 600-800 ............... 650-750
2.0L
Non-Turbo ............ 700-900 ................... ( 1)
Turbo ................ 650-850 ............... 700-800
2.4L ................... 650-850 ............... 700-800
3.0L & 3.5L ............ 600-800 ............... 650-750
( 1) - Information is not available from manufacturer at time
of publication.
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INJECTOR RESISTANCE
INJECTOR RESISTANCE TABLE

COMPUTER RELEARN PROCEDURES
1998 Mitsubishi Montero
GENERAL INFORMATION
Computer Relearn Procedures
All Models
* PLEASE READ THIS FIRST *
The following general procedures are to be used if
driveability problems are encountered after power loss or battery has
been disconnected. These procedures may provide an aid in eliminating
these problems.
To reduce the possibility of complaints, after any service
which requires battery power to be disconnected, vehicle should be
road tested.
COMPUTER RELEARN PROCEDURES
Vehicles equipped with engine or transmission computers may
require a relearn procedure after vehicle battery is disconnected.
Many vehicle computers memorize and store vehicle operation patterns
for optimum driveability and performance. When vehicle battery is
disconnected, this memory is lost. The computer will use default data
until new data from each key start is stored. As computer memorizes
vehicle operation for each new key start, driveability is restored.
Vehicle computers may memorize vehicles operation patterns for 40 of
more key starts.
Customers often complain of driveability problems during
relearn stage because vehicle acts differently then before being
serviced. Depending on type and make of vehicle and how it is
equipped, the following complaints (driveability problems) may exist:
* Harsh Or Poor Shift Quality
* Rough Or Unstable Idle
* Hesitation Or Stumble
* Rich Or Lean Running
* Poor Fuel Mileage
These symptoms and complaints should disappear after a number
of drive cycles have been memorized. To reduce the possibility of
complaints, after any service which requires battery power to be
disconnected, vehicle should be road tested. If a specific relearn
procedure is not available, the following procedure may be used:
Automatic Transmission
* Set parking brake, start engine in "P" or "N" position.
Warm-up vehicle to normal operating temperature or until
cooling fan cycles.
* Allow vehicle to idle for one minute in "N" position. Select
"D" and allow engine to idle for one minute.
* Accelerate at normal throttle position (20-50%) until vehicle
shifts into top gear.
* Cruise at light to medium throttle.
* Decelerate to a stop, allowing vehicle to downshift, and use
brakes normally.
* Process may be repeated as necessary.
Manual Transmission

D - ADJUSTMENTS
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - On-Vehicle Adjustments
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
ENGINE MECHANICAL
Before performing any on-vehicle adjustments to fuel or
ignition system, ensure engine mechanical condition is okay (i.e.,
engine compression).
VALVE CLEARANCE
VALVE ADJUSTMENT
NOTE: All models use hydraulic valve lifters. Adjustment is not
required.
CHECKING HYDRAULIC VALVE LIFTERS
1) Warm engine to normal operating temperature. Remove valve
cover. Position cylinder No. 1 at TDC on compression stroke. On 4-
cylinder engines, check intake rockers on cylinders No. 1 and 2. Check
exhaust rockers on cylinders No. 1 and 3. On V6 engines, check intake
rockers on cylinders No. 1, 5 and 6. Check exhaust rockers on
cylinders No. 1, 2 and 3.
2) Push downward on end of rocker arm, above lash adjuster.
Rotate crankshaft 360 degrees. On 4-cylinder engines, check intake
rockers on cylinders No. 3 and 4. Check exhaust rockers on cylinders
No. 2 and 4. On V6 engines, check intake rockers on cylinders No. 2, 3
and 4. Check exhaust rockers on cylinders No. 4, 5 and 6. If lash
adjuster is normal, it will feel solid.
3) If lash adjuster moves downward easily when pushed,
replace adjuster. If lash adjuster feels soft or spongy, air has
probably entered lash adjuster. If this occurs, check engine oil
level. If engine oil level is okay, check oil screen and oil screen
gasket for damage.
4) After repairing cause of air ingestion, warm engine to
operating temperature. Drive vehicle at low speed for approximately 5
minutes. Turn engine off for a few minutes.
5) Restart engine and drive at low speed for approximately 5
minutes. Repeat this step several times for about one hour. This helps
remove air from engine oil.
IGNITION TIMING
NOTE: Perform all checks with engine at normal operating
temperature, cooling fan and accessories off, transmission
in Park or Neutral, and front wheels in straight-ahead
position. Ignition timing check procedure for Eclipse 2.0L
non-turbo not available from manufacturer at time of
publication.
Diamante
1) Ignition timing is controlled by Powertrain Control Module
(PCM) and is not adjustable. Manufacturer provides procedure for
checking timing. DO NOT attempt to adjust ignition timing by rotating

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