1998 MITSUBISHI MONTERO ECO mode

Measure between center and right terminals of connector for cylinders
No. 1 and 4, and between center and left terminals of connector for
cylinders No. 2 and 3.
4) On all models, remove ignition wires from coil. Measure
secondary coil resistance between coil towers for cylinders No. 1 and
4 and between coil towers for cylinders No. 2 and 3. Primary and
secondary coil resistance should be within specification. See
IGNITION COIL RESISTANCE (ECLIPSE) table. Connect coil harness
connector. Connect ignition wires to coil.
IGNITION COIL RESISTANCE (ECLIPSE) - Ohms @ 68
F (20C) TABLE








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Application Primary Secondary
2.0L
Non-Turbo ............ .51-.61 ......... 11,500-13,500
Turbo ................ .70-.86 ......... 11,300-15,300
2.4L ................... .74-.90 ......... 20,100-27,300









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Power Transistor (Eclipse 2.0L Turbo & 2.4L)
1) To test the section of the power transistor that controls
cylinders No. 1 and 4, disconnect power transistor connector. Using a
1.5-volt dry cell battery, connect negative end of battery to terminal
No. 3 of power transistor and positive end to terminal No. 7. See
Fig. 4 .
Fig. 4: Identifying Power Transistor Connector Terminals (Eclipse
2.0L Turbo & 2.4L)
Courtesy of Mitsubishi Motor Sales of America
2) Using an analog ohmmeter, check for continuity between
terminals No. 3 and 8 of power transistor. Continuity should exist.
With positive end of 1.5-volt battery disconnected, there should be no
continuity. Replace power transistor if it fails test.
3) To test the section of the power transistor that controls
cylinders No. 2 and 3, connect negative end of 1.5-volt dry cell
battery to terminal No. 3 of power transistor and positive end to
terminal No. 2.
4) Using an analog ohmmeter, check for continuity between
terminals No. 1 and 3 of power transistor. Continuity should exist.
With positive end of 1.5-volt battery disconnected, there should be no
continuity. Replace power transistor if it fails test.
Power Transistor (Mirage)
1) Disconnect power transistor (distributor) connector. Usin\
g
a 1.5-volt dry cell battery, connect negative end of battery to
terminal No. 4 of power transistor and positive end to terminal No. 3.
See Fig. 5 .

G - TESTS W/CODES
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - Self-Diagnostics
Montero & 3000GT
INTRODUCTION
* PLEASE READ THIS FIRST *
NOTE: If no faults were found while performing basic diagnostic
procedures in F - BASIC TESTING article, proceed with
self-diagnostics in this article. If no Diagnostic Trouble
Codes (DTCs) or only pass codes are present after entering
self-diagnostics, proceed to H - TESTS W/O CODES article for
diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).
SYSTEM DIAGNOSIS
NOTE: PCM diagnostic memory is retained by direct power supply
from battery. Memory is not erased by turning off ignition,
but it will be erased if battery or PCM is disconnected.
System diagnosis can be accomplished using a scan tool. See
ENTERING ON-BOARD DIAGNOSTICS . Powertrain Control Module (PCM)
monitors several different engine control system circuits. If an
abnormal input signal occurs, a Diagnostic Trouble Code (DTC) is
stored in PCM memory and assigned a DTC number. Each circuit has its
own DTC number and message. A specific DTC indicates a particular
system failure, but does not indicate that cause of failure is
necessarily within system.
A DTC does not condemn any specific component; it simply
points out a probable malfunctioning area. If a DTC is set, PCM will
turn on MIL. System failures encountered are identified as either hard
failures or intermittent failures as determined by PCM.
Hard Failures
Hard failures cause MIL to come on and remain on until
failure is repaired. If MIL comes on and remains on (MIL may flash)
during vehicle operation, cause of failure may be determined by using
appropriate DTC diagnostic procedure. See TROUBLE CODE DEFINITION. If
a sensor fails, PCM will use a substitute value in its calculations to
continue engine operation. In this condition (limp-in mode), vehicle
is functional, but loss of good driveability may result.
Intermittent Failures
Intermittent failures may cause MIL to flicker, or come on
and go out after intermittent DTC goes away. However, corresponding
DTC will be retained in PCM memory. If related DTC does not reoccur
within a certain time frame, related DTC will be erased from PCM
memory. Intermittent failures may be caused by a sensor, connector or
wiring problems. See INTERMITTENTS in H - TESTS W/O CODES article.
The PCM also records and stores engine operating conditions
when malfunction occurred. This information is referred to as freeze
frame data. If malfunction is an engine misfire, or fuel system rich
or fuel system lean condition, freeze frame data will be updated with
the most current information regarding these failures. Freeze frame
data recorded is:
* Fuel System Status

CLEARING DTCS
CAUTION: When battery is disconnected, vehicle computer and memory
systems may lose memory data. Driveability problems may
exist until computer systems have completed a relearn cycle.
To clear DTCs using a scan tool, refer to owners manual
supplied with scan tool. If scan tool is not available, DTCs may also
be cleared by disconnecting negative battery cable or PCM for at least
15 seconds, allowing PCM to clear DTCs. Reconnect negative battery
cable and check for DTCs to confirm repair.
PCM LOCATION
PCM LOCATION TABLE








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Application Location
Montero ........................... Right Front Kick Panel
3000GT ............................. Behind Center Console









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SUMMARY
If no hard DTCs (or only pass DTCs) are present, driveability\
symptoms exist, or intermittent DTCs exist, proceed to H - TESTS W/O
CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START,
etc.) or intermittent diagnostic procedures.
TERMINAL IDENTIFICATION
NOTE: The following terminals are shown as viewed from component
side of connector. Vehicles are equipped with different
combinations of components. Not all components are used on
all models. To determine component usage, see appropriate
wiring diagram in L - WIRING DIAGRAMS article.
TERMINAL IDENTIFICATION DIRECTORY TABLE









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Connector See
ASD/Fuel Pump/MFI Relay ...................... Fig. 1 or 2
CKP/CMP Sensor ............................ Fig. 3, 4 or 5
DLC ............................................... Fig. 6
ECT Sensor ........................................ Fig. 7
EVAP Purge Solenoid ............................... Fig. 8
EVAP Vent Solenoid ................................ Fig. 9
Fuel Injector ....................... Fig. 10, 11, 12 or 13
Fuel Pump ................................... Fig. 14 or 15
Fuel Pump Control/Relay Module .................... Fig. 16
FTDP Sensor ...................................... Fig. 17
Generator Field .................................. Fig. 18
HO2S ............................................. Fig. 19
IAC Motor ........................................ Fig. 20
Ignition Coil .......................... Fig. 21, 22 or 23
Ignition Failure Sensor .......................... Fig. 24
Ignition Power Transistor .................. Fig. 25 or 26
KS ............................................... Fig. 27
MDP Sensor ....................................... Fig. 28
PCM .............................................. Fig. 29

See Fig. 1 . Connect negative voltmeter lead to ground.
2) Disconnect generator output wire from terminal "B".
Install a 100-amp ammeter in series with terminal "B" and disconnected
output lead. Connect positive lead of ammeter to terminal "B" and
negative lead to disconnected output wire. Install a tachometer, and
reconnect negative battery cable.
3) Turn ignition switch on and ensure voltmeter indicates
battery voltage. If voltage is not present, check for open in wire
between generator terminal "S" and positive battery terminal. Check
for blown fusible link.
4) Start engine. Ensure all lights and accessories are off.
Operate engine at 2500 RPM and read voltmeter when generator output
current drops to 10 amps or less. Voltage regulator is okay if voltage
output is within specification. See REGULATOR VOLTAGE SPECIFICATIONS
table.
REGULATOR VOLTAGE SPECIFICATIONS TABLE









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Ambient Temperature Voltage
-4
F (-20C) ................................... 14.2-15.4
68F (20C) .................................... 13.9-14.9
140F (60C) ................................... 13.4-14.6
176F (80C) ................................... 13.1-14.5








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GENERATOR RELAY TEST
NOTE: Information for all other models is not available from
manufacturer at time of publication.
Diamante & Mirage
Remove generator relay. On Diamante, relay is located in
relay box in engine compartment near battery. On Mirage, relay is
located in relay box in engine compartment between battery and strut
tower. On both models, connect positive lead of ohmmeter to relay
terminal No. 4. See WIRING DIAGRAMS. Connect negative lead of ohmmeter
to relay terminal No. 2. Continuity should be present. Switch ohmmeter
lead locations. Continuity should not be present. Replace generator
relay if continuity is not as specified.
BENCH TESTING
RECTIFIER ASSEMBLY
1) Using ohmmeter, check for continuity between diodes and
stator coil lead connection. See Fig. 2. Reverse leads. If continuity
is present in both directions, diode is shorted. Replace rectifier
assembly.
2) To check entire diode assembly, use an ohmmeter to check
for continuity between both ends of each diode. See Fig. 2. Switch
ohmmeter leads. Continuity should be present in one direction only. If
continuity is not as specified, diode is defective. Replace rectifier
assembly.

8 - Engine Type
M * 3.5L V6
9 - VIN Check Digit
* 1 Through 9 Or X
10 - Vehicle Model Year
V * 1997
W * 1998
11 - Assembly Plant
J * Nagoya, Japan
12-17 - Serial Number
* Sequential Production Number
MAINTENANCE SERVICE INFORMATION
SEVERE & NORMAL SERVICE DEFINITIONS
Service is recommended at mileage intervals based on vehicle
operation. Service schedules are based on the following primary
operating conditions.
Normal Service
* Driven More Than 10 Miles Daily
* No Operating Conditions From Severe Service Schedule
Severe Service (Unique Driving Conditions)
NOTE: Use the Severe Service schedule if the vehicle to be serviced
is operated under ANY (one or more) of these conditions:
* Driving In Dusty Conditions
* Towing A Trailer, Police, Taxi, Or Commercial Type Operation
* Extensive Idling, Driving In Stop And Go Traffic
* Short-Trip Operation At Freezing Temperatures
(Engine Not Thoroughly Warmed Up)
* Driving In Sandy Areas
* Driving In Salty Areas
* More Than 50% Operation In Heavy City Traffic Or At Sustained
High Speeds During Hot Weather Above 90
\bF (32\bC)
* Driving On Off-Road
CAMSHAFT TIMING BELT
Replace the camshaft timing belt every 60,000 miles. It is
recommended that the timing belt be inspected every 30,000 miles after
replacement.
CAUTION: Failure to replace a faulty camshaft timing belt may result
in serious engine damage.
The condition of camshaft drive belts should always be
checked on vehicles which have more than 50,000 miles. Although some
manufacturers do not recommend belt replacement at a specified
mileage, others require it at 60,000-100,000 miles. A camshaft drive
belt failure may cause extensive damage to internal engine components
on most engines, although some designs do not allow piston-to-valve
contact. These designs are often called "Free Wheeling".
Many manufacturers changed their maintenance and warranty

SAE J2210 specifications. If accidental system discharge
occurs, ventilate work area before resuming service.
WARNING: R-134a service equipment or vehicle A/C systems SHOULD NOT
be pressure tested or leak tested with compressed air. Some
mixtures of air/R134a have shown to be combustible at
elevated pressures. These mixtures are dangerous and may
cause fire and/or explosions. See AIR CONDITIONING SERVICE
article in GENERAL INFORMATION section.
AIR CLEANER FILTER
WARNING: Operating the engine with the air cleaner off can cause you
or others to be burned. The air cleaner not only cleans the
air, it stops flame if the engine backfires. Do not drive
with it off, and be careful working on the engine with the
air cleaner off.
ANTI-LOCK BRAKE SYSTEM
The anti-lock brake system contains electronic equipment that
can be susceptible to interference caused by improperly installed or
high output radio transmitting equipment. Since this interference
could cause the possible loss of the anti-lock braking capability,
such equipment should be installed by qualified professionals.
On models equipped with anti-lock brake systems, ALWAYS
observe the following cautions:
* DO NOT attempt to bleed hydraulic system without first
referring to the appropriate ANTI-LOCK BRAKE SYSTEM article
in the BRAKES Section.
* DO NOT mix tire sizes. As long as tires remain close to the
original diameter, increasing the width is acceptable.
Rolling diameter must be identical for all 4 tires. Some
manufacturers recommend tires of the same brand, style and
type. Failure to follow this precaution may cause inaccurate
wheel speed readings.
* Use ONLY recommended brake fluids. DO NOT use silicone brake
fluids in an ABS-equipped vehicle.
AUTOMATIC TRANSAXLE SERVICE
WARNING: Make certain that no fluid is spilled when the transaxle
fluid is inspected, or when fluid is added soon after
driving (since the engine is hot). If the fluid spills onto
the exhaust manifold, there is danger of fire.
BATTERY SERVICE
WARNING: When battery is disconnected, vehicles equipped with
computers may lose memory data. When battery power is
restored, driveability problems may exist on some vehicles.
These vehicles may require a relearn procedure. See COMPUTER
RELEARN PROCEDURES article in GENERAL INFORMATION section.
WARNING: Batteries produce flammable hydrogen gas. Keep flames and
sparks away from the battery or and explosion may occur.
Never smoke when working in the vicinity of the battery.
WARNING: When checking or servicing the battery, disconnect the
negative cable. Be careful not to cause a short circuit by

1) Front HO2S is mounted in exhaust pipe below exhaust
header. Rear HO2S is mounted behind catalytic converter. HO2S is
equipped with a permanent pigtail which must be protected from damage
when HO2S is removed. Ensure HO2S is free of contaminants. Avoid using
cleaning solvents of any type.
2) HO2S may be difficult to remove when engine temperature is
less than 120
F (48C). If using original sensor, always use anti-
seize compound on threads before installation. New sensor threads are
precoated with anti-seize. Tighten HO2S to specification. See
TORQUE SPECIFICATIONS .
THROTTLE BODY
Removal
1) Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELEASE.
Drain enough coolant to ensure coolant level is below throttle body.
Disconnect air intake hose.
2) Remove accelerator, cruise control and A/T throttle valve
cables (if equipped). Disconnect fuel vapor hose, electrical harness
connector, vacuum hose and coolant hoses. Remove throttle body
retaining bolts.
Disassembly
Remove throttle position sensor. Remove idle air control
motor. Remove throttle bracket and connector bracket (if equipped).
Remove idle position switch and adjusting nut (if equipped).
CAUTION: DO NOT remove throttle valve. DO NOT use cleaning solvents
on throttle position sensor, idle air control motor or idle
position switch.
Cleaning
1) Clean all parts except throttle position sensor, idle air
control motor and idle position switch in solvent.
WARNING: Safety glasses MUST be worn whenever compressed air is used
for parts cleaning.
2) Check vacuum port and passage for clogging. Clean vacuum,
vapor and fuel passages using compressed air.
Reassembly
To reassemble, reverse disassembly procedure.
Installation
To install, reverse removal procedure.
THROTTLE POSITION (TP) SENSOR
Removal & Installation
Throttle Position (TP) sensor is located on throttle body.
Disconnect TP sensor electrical connector. Remove TP sensor screws and
TP sensor. To install, reverse removal procedure. Tighten TP sensor
screws to specification. See TORQUE SPECIFICATIONS. For TP sensor
adjustment procedure, see D - ADJUSTMENTS article.
TURBOCHARGERS
Removal (Eclipse)
1) Disconnect negative battery cable. Drain engine coolant
and oil. On models equipped with A/C, remove condenser fan motor
assembly. Remove front heated oxygen sensor. Remove oil dipstick guide
and "O" ring.

PARASITIC LOAD EXPLANATION & TEST PROCEDURES
1998 Mitsubishi Montero
GENERAL INFORMATION
Parasitic Load Explanation & Test Procedures
* PLEASE READ THIS FIRST *
This article is provided for general information only. Not
all procedures apply to all makes and models.
GENERAL INFORMATION
The term Parasitic Load refers to electrical devices that
continue to use or draw current after the ignition switch is turned to
OFF position. This small amount of continuous battery draw is
expressed in milliamps (mA). On Ford Motor Co. and General Motors
vehicles produced after 1980, a typical Parasitic Load should be no
more than 50 milliamps (0.050 amps).
Vehicles produced since 1980 have memory devices that draw
current with ignition off for as long as 20 minutes before shutting
down the Parasitic Drain. When Parasitic Load exceeds normal
specifications, the vehicle may exhibit dead battery and no-start
condition.
Follow test procedure for checking Parasitic Loads to
completion. A brief overview of a suggested test procedure is included
along with some typical Parasitic Load specifications. Refer to the
GENERAL MOTORS PARASITIC LOAD TABLE chart.
TESTING FOR PARASITIC LOAD
INTRODUCTION
CAUTION: Always turn ignition off when connecting or disconnecting
battery cables, battery chargers or jumper cables. DO NOT
turn test switch to OFF position (which causes current to run
through ammeter or vehicle electrical system).
NOTE: Memory functions of various accessories must be reset after
the battery is reconnected.
The battery circuit must be opened to connect test switch
(shunt) and ammeter into the circuit. When a battery cable is removed,\
timer circuits within the vehicle computer are interrupted and
immediately begin to discharge. If in doubt about the condition of the
ammeter fuse, test it with an ohmmeter prior to beginning test. An
open fuse will show the same reading (00.00) as no parasitic drain.
Begin test sequence with the meter installed and on the 10-amp scale.
Select lower scale to read parasitic draw.
TEST PROCEDURE USING TEST SWITCH
1) Turn ignition off. Remove negative battery terminal cable.
Install Disconnect Tool (J-38758) test switch male end to negative
battery cable. Turn test switch knob to OFF position (current through
meter). Install negative battery cable to the female end of test
switch.
2) Turn test switch knob to ON position (current through
switch). Road test vehicle with vehicle accessories on (radio, air
conditioner, etc.). After road test, turn ignition switch to LOCKED
position and remove key. Connect ammeter terminals to test switch