A - INTRODUCTION
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - Introduction
Diamante, Eclipse, Eclipse Spyder, Galant, Mirage, Montero,
Montero Sport, 3000GT
1997-98 MODEL COVERAGE
ENGINE/VIN IDENTIFICATION
ENGINE/VIN IDENTIFICATION TABLE \
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BODY ENGINE FUEL IGNITION
MODEL CODE (1) ENGINE (2) ID (3)SYSTEM SYSTEM (5)
\b\
\b\
\
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\b\b\
\b\
\
Diamante 7 3.5L V6 (6G74) SOHC P SFI Hall Effect
(
4) ( 6)
\b\
\b\
\
\
\b\b\
\b\
\
Eclipse 4 2.0L 4-Cyl. (420A) Y SFI DIS (
7)
DOHC (
4)
\
\
\b\
\b\b\
\
2.0L 4-Cyl. (4G63) F SFI DIS (
7)
DOHC Turbo (
4)
\b\
\b\
\
\
\b\b\
\b\
\
Eclipse 5 2.0L 4-Cyl. (4G63) F SFI DIS (
7)
Spyder DOHC Turbo (
4)
\
\
\b\
\b\b\
\
2.4L 4-Cyl. (4G64) G SFI DIS (
7)
SOHC (
4)
\b\
\b\
\
\
\b\b\
\b\
\
Galant 6 2.4L 4-Cyl. (4G64) G SFI Hall Effect
SOHC (
4) ( 6)
\b\
\b\
\
\
\b\b\
\b\
\
Mirage 1, 6 1.5L 4-Cyl. (4G15) A SFI Hall Effect
SOHC (
4) ( 6)
\
\
\b\
\b\b\
\
1.8L 4-Cyl. (4G93) C SFI DIS (
7)
SOHC (
4)
\b\
\b\
\
\
\b\b\
\b\
\
Montero 1 3.5L V6 (6G74) SOHC M SFI DIS (
7)
(
4)
\b\
\b\
\
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\b\b\
\b\
\
Montero 1 2.4L 4-Cyl. (4G64) G SFI Hall Effect
Sport SOHC (
4) ( 6)
\
\
\b\
\b\b\
\
3.0L V6 (6G72) SOHC P SFI DIS (
7)
(
4)
\b\
\b\
\
\
\b\b\
\b\
\
3000GT 4, 5 3.0L V6 (6G72) SOHC H SFI Hall Effect
(
4) ( 6)
\
\
\b\
\b\b\
\
3.0L V6 (6G72) DOHC J SFI DIS (
7)
(
4)
\
\
\b\
\b\b\
\
3.0L V6 (6G72) DOHC K SFI DIS (
7)
Turbo (
4)
\
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\
\
\
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(
1) - Body code is seventh character of Vehicle Identification
Number (VIN). VIN is located on upper left corner of
instrument panel.
(
2) - See Figs. 1 and 2.
(
3) - Engine ID is eighth character of VIN.
(
4) - Fuel system is a Sequential Fuel Injection (SFI) system.
(
5) - Ignition timing is computer-controlled.
(
6) - This system may also be referred to as distributor ignition.
(
7) - This system may also be referred to as distributorless
ignition.
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VIN DEFINITION
J A 3 A Y 3 6 A 1 W U 0 0 0 0 0 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
1 - Indicates Nation of Origin.
2 - Indicates Manufacturer.
3 - Indicates Vehicle Type.
4 - Indicates Restraint System. ( 1)
5 - Indicates Model.
6 - Indicates Vehicle Series.
7 - Indicates Body Type.
8 - Indicates Engine Type and Make.
9 - Indicates Check Digit.
10 - Indicates Model Year.
11 - Indicates Assembly Plant.
12-17 - Indicates Serial Number.
( 1) - On Montero & Montero Sport, fourth character of VIN indicates
GVWR.
VIN CODE/YEAR APPLICATIONS
VIN CODE/YEAR APPLICATION TABLE\
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VIN Code Model Year
T ................................................... 1996
V ................................................... 1997
W ................................................... 1998
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ENGINE CODE LOCATIONS
Fig. 1: Engine Code Locations (Diamante)
Courtesy of Chrysler Corp.
AUTO TRANS DIAGNOSIS - R4AW3 & V4AW3
1998 Mitsubishi Montero
1997-98 AUTOMATIC TRANSMISSIONS
Mitsubishi R4AW3 & V4AW3 Electronic Controls
Montero, Montero Sport
APPLICATION
TRANSMISSION APPLICATION \
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Vehicle Transmission Model
Montero Sport 2WD ............................................ R4AW3
Montero & Montero Sport 4WD .................................. V4AW3
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CAUTION: Vehicle is equipped with Supplemental Restraint System (SRS).
When servicing vehicle, use care to avoid accidental air bag
deployment. SRS-related components are located in steering
column, center console, instrument panel and lower panel on
instrument panel. DO NOT use electrical test equipment on
these circuits. If necessary, deactivate SRS before servicing
components. See AIR BAG SERVICING article in APPLICATIONS &
IDENTIFICATION.
DESCRIPTION
Automatic transmission is a 4-speed electronically controlled
transmission. Solenoids that control shift changes are located in
valve body. Solenoids are controlled by a Transmission Control Module
(TCM). TCM receives information from various input devices and uses
this information to control shift solenoids for transmission shifting
and lock-up solenoid for torque converter lock-up.
An Overdrive (OD) switch is mounted on the shift lever. When
OD switch is depressed to ON position, transmission will shift into
4th gear when shift lever is in "D" position, and OD OFF light on
instrument panel will go off. When OD switch is released to OFF
position, transmission will shift into 3rd gear, and OD OFF light on
instrument panel will illuminate.
A pattern select switch is located near shift lever on center
console. Pattern select switch contains a NORMAL and a HOLD operating
position. When pattern select switch is depressed (HOLD position) with\
shift lever in Drive position, transmission starts in 2nd gear.
Upshifts and downshifts will occur at a higher vehicle speed than with
switch in NORMAL position. See MITSUBISHI R4AW3 & V4AW3 OVERHAUL
article. Indicator light on instrument panel indicates pattern select
switch is in HOLD position.
Transmission is equipped with a shift lock and key interlock
system. Shift lock system prevents shift lever from being moved from
Park unless brake pedal is depressed. Key interlock system prevents
ignition key from being moved from ACC to LOCK position on ignition
switch unless shift lever is in Park. See MITSUBISHI SHIFT LOCK
SYSTEMS article.
OPERATION
TCM
TCM receives information from various input devices and uses