1998 MITSUBISHI MONTERO ignition coil

Water Pump Bolt (Diamante)
8 mm Bolt .............................................. 18 (24)\
10 mm Bolt ............................................. 30 (41)\
INCH Lbs. (N.m)
Crankshaft & Drive Plate
Bell Housing ............................................ 79.7 (9)\
Oil Seal Case .......................................... 97.3 (11)\
Rear Plate (Montero) ................................... 97.3 (11\
)
Exhaust Manifold
Heat Shield ........................................... 123.9 (14)\
Oil Level Gauge Guide Bolt ............................ 123.9 (14)\
Generator & Drive Belt
Cooling Fan Bolt (Montero) ............................. 97.3 (11\
)
Cooling Fan Nut (Montero) .............................. 97.3 (11\
)
Timing Indicator Bolt (Montero) ........................ 97.3 (11\
)
Intake Manifold & Fuel
ECT Gauge Sender ....................................... 97.4 (11)\
Fuel Pressure Regulator Bolt ............................ 79.6 (9)\
Fuel Pipe Banjo Bolt .................................... 79.6 (9)\
Injector & Fuel Rail Bolt ............................. 106.2 (12)\
Water Outlet Pipe ..................................... 123.9 (14)\
Intake Plenum & Throttle Body
Ignition Coil Bolt (Montero) ............................ 115 (13\
)
Manifold Differential Pressure (MDP) Sensor ............. 44 (4.9\
)
Throttle Body Bolt ...................................... 106 (12)\
Vacuum Hose Assembly (Diamante) ......................... 88 (9.8\
)
Oil Pan & Oil Pump
Baffle Plate (Montero) ................................. 97.3 (11\
)
Baffle Plate (Diamante) ................................ 97.3 (11\
)
6 mm Bolt ............................................... 53.1 (6)\
8 mm Bolt ............................................... 79.6 (9)\
Oil Pump Cover Bolt (Diamante) ......................... 88.5 (10\
)
Oil Pump Cover Bolt (Montero)
6 mm x 10 mm Bolt .................................... 97.3 (11)\
6 mm x 18 mm Bolt ..................................... 53.1 (6)\
Oil Pressure Gauge Sender .............................. 88.5 (10)\
Oil Pan (Upper) ......................................... 53.1 (6\
)
Oil Pan (Lower) ........................................ 97.3 (11\
)
Oil Pump Case ......................................... 123.9 (14)\
Oil Screen (Montero)
6 mm Bolt ............................................. 53.1 (9)\
Rocker Arms & Camshafts
Rocker Cover Bolt ....................................... 31 (3.5)\
Thrust Case Bolt ...................................... 115.1 (13)\
Timing Belt
Camshaft Position (CMP) Sensor (Montero) ................ 79.6 (\
9)
Crankshaft Position (CKP) Sensor ........................ 79.6 (9\
)
( 1) - Tighten cylinder head bolts in 2 or 3 steps with engine cold.









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ENGINE SPECIFICATIONS
GENERAL SPECIFICATIONS
GENERAL SPECIFICATIONS








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Application Specification
Displacement .................................. 213.4 Cu. In. (3.5L)\
Bore ............................................... 3.6614" (93 mm)\









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ABBREVIATION DEFINITION 










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B/P Backpressure 

BAC By-Pass Air Control 

BAP Barometric Absolute Pressure Sensor 

BARO Barometric 

BBDC Before Bottom Dead Center 

BCM Body Control Module 

BDC Bottom Dead Center 

BHP Brake Horsepower 

BLK Black 

BLU Blue 

BMAP Barometric & Manifold Absolute Pressure Sensor 

BOO Brake On-Off Switch 

BP Barometric Pressure sensor 

BPS Barometric Pressure Sensor 

BPT Backpressure Transducer 

BRN Brown 

BTDC Before Top Dead Center 

BTU British Thermal Unit 

BVSV Bimetallic Vacuum Switching Valve 

Baro. Barometric 

Batt. Battery 

Bbl. Barrel (Example: 4-Bbl.) 

Blst. Ballast 

Blwr. Blower 

Brkr. Breaker 











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"C" ABBREVIATION TABLE
"C" ABBREVIATION TABLE







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ABBREVIATION DEFINITION 










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C Celsius (Degrees) 

C(3) I Computer Controlled Coil Ignition 

C(4) Computer Controlled Catalytic Converter 

CANP Canister Purge solenoid 

CARB California Air Resources Board 

CAT Catalytic Converter 

CB Circuit Breaker 

CBD Closed Bowl Distributor 

CBVV Carburetor Bowl Vent Valve 

cc Cubic Centimeter 

CCC Computer Command Control 

CCD Computer Controlled Dwell 

CCM Central Control Module 

CCO Converter Clutch Override 

CCOT Cycling Clutch Orifice Tube 

CCW Counterclockwise 

CDI Capacitor Discharge Ignition 

CEC Computerized Engine Control 

CFI Central Fuel Injection 

CID Cubic Inch Displacement 

CID Cylinder Identification sensor 

CIS Continuous Injection System 

CIS-E Continuous Injection System-Electronic 

CKT Circuit 

CLR Clear 

CNG Compressed Natural Gas 

Once repairs have been performed, DTCs must be cleared from
TCM memory. DTCs may be cleared by disconnecting negative battery
cable for 10 seconds or more. Reconnect cable and ensure DTCs have
been cleared. Start engine and warm to normal operating temperature.
Run engine at idle for 10 minutes. DTCs may also be cleared using scan
tool. Refer to manufacturer's instruction manual.
DIAGNOSTIC TESTS
NOTE: For terminal and wire color identification, see WIRING
DIAGRAMS.
DTC 11: THROTTLE POSITION (TP) SENSOR
For diagnosis and testing information, see appropriate SELF-
DIAGNOSTICS article in ENGINE PERFORMANCE section. If TP sensor is
okay, check wiring harness and connectors between TP sensor and TCM.
Repair if necessary. If wiring harness and connectors are okay,
replace TCM.
DTC 15 & 16: OPEN OR SHORT IN OIL TEMPERATURE SENSOR CIRCUIT
1) Test oil temperature for proper operation. See OIL
TEMPERATURE SENSOR under COMPONENT TESTING. If oil temperature sensor
is okay, check wire harness, connectors and ground circuit for poor
connections or damage. Go to next step.
2) If wire harness and connectors are okay, check DTCs again
and verify code No. 15 or No. 16 still exists. If either code still
exists, replace TCM.
DTC 21 & 22: SHORT OR OPEN IN IGNITION SIGNAL CIRCUIT
1) Using an external tachometer, verify vehicles' tachometer
is operating accurately. If tachometer is incorrect, check ignition
coil and ignition power transistor and circuits for malfunction. See
appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE section.
2) If tachometer is okay, check TCM wire harness connector
for poor connection. If wire harness is okay, recheck DTCs. If codes
reappear check wire harness between ignition power transistor and TCM.
If wire harness is okay, replace TCM.
DTC 23 & 24: OPEN OR SHORT IN SIGNAL LINE (ECT) FROM ECM TO
TCM
Check wire harness, connectors and ground circuit for poor
connections or damage. Go to next step. If wire harness and connectors
are okay, check DTCs again and verify code No. 23 or No. 24 still
exists. If either code still exists, replace TCM.
DTC 29 & 30: SHORT OR OPEN IN PARK/NEUTRAL POSITION (PNP)
SWITCH CIRCUIT
1) Check PNP switch for correct operation. See. If PNP switch
is okay, disconnect switch connector and measure voltage between
harness connector terminal No. 1 and ground.
2) If battery voltage does not exist, check wire harness and
connectors. See WIRING DIAGRAMS. If battery voltage exists, check wire
harness and connectors between PNP switch and TCM. If wire harness is
okay, replace TCM.
DTC 31: INPUT SPEED SENSOR

(VIN H) ........................................ 8.9:1
(VIN J) ....................................... 10.0:1
(VIN K) ........................................ 8.0:1
(VIN P) ........................................ 9.0:1
3.5L (VIN M & P) ................................. 9.0:1
Compression Pressure
1.5L (VIN A) ..................... 192 psi (13.4 kg/cm
)
1.8L (VIN C) ..................... 199 psi (13.9 kg/cm)
2.0L (VIN F) ..................... 178 psi (12.5 kg/cm)
2.0L (VIN Y) ............ 170-225 psi (11.7-15.5 kg/cm)
2.4L (VIN G) ..................... 192 psi (13.4 kg/cm)
3.0L
(VIN H & P) .................... 171 psi (12.0 kg/cm
)
(VIN J) ........................ 185 psi (13.0 kg/cm)
(VIN K) ........................ 156 psi (10.9 kg/cm)
3.5L (VIN M & P) ................. 171 psi (12.0 kg/cm)
Maximum Variation
Between Cylinders ( 2) ............... 14 psi (1.0 kg/cm
)
( 1) - See A - ENGINE/VIN ID article for VIN information.
( 2) - On Eclipse 2.0L non-turbo engine, maximum variation
between cylinders is 25 percent.









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VALVE CLEARANCE
NOTE: All engines are equipped with hydraulic lifters. No
adjustment is required.
IGNITION SYSTEM
IGNITION COIL
IGNITION COIL RESISTANCE - Ohms @ 68F (20C) TABLE








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Application (1) Primary Secondary
1.5L (VIN A) ............ .5-.7 .......... 15,000-22,000
1.8L (VIN C) ............. ( 2) ........... 14,000-21,000
2.0L
(VIN F) .............. .70-.86 ......... 11,300-15,300
(VIN Y) .............. .51-.61 ......... 11,500-13,500
2.4L (VIN G)
Eclipse .............. .74-.90 ......... 20,100-27,300
Galant ............... .9-1.2 .......... 20,000-29,000
Montero Sport ........ .67-.81 ......... 11,300-15,300
3.0L
(VIN H) .............. .72-.88 ......... 10,300-13,900
(VIN J & K) .......... .67-.81 ......... 11,300-15,300
(VIN P) .............. .74-.90 ......... 20,100-27,300
3.5L
(VIN M) .............. .74-90 .......... 20,100-27,300
(VIN P) .............. .50-.70 ........... 9000-13,000
( 1) - See A - ENGINE/VIN ID article for VIN information.
( 2) - Information is not available from manufacturer at time
of publication.









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HIGH TENSION WIRE RESISTANCE
Wire resistance should not exceed 22,000 ohms for all models

usage on specific models, see appropriate wiring diagram in
L - WIRING DIAGRAMS article. For theory and operation on each
output component, refer to system indicated after component.
Data Link Connector (DLC)
See SELF-DIAGNOSTIC SYSTEM .
EGR Control Solenoid Valve
See EXHAUST GAS RECIRCULATION (EGR) CONTROL under EMISSION
SYSTEMS.
Fuel Injectors
See FUEL CONTROL under FUEL SYSTEM.
Fuel Pressure Control Solenoid Valve (Turbo)
See FUEL DELIVERY under FUEL SYSTEM.
Fuel Pressure Regulator
See FUEL DELIVERY under FUEL SYSTEM.
Idle Air Control (IAC) Motor
See IDLE SPEED under FUEL SYSTEM.
Malfunction Indicator Light
See SELF-DIAGNOSTIC SYSTEM .
Power Transistor(s) & Ignition Coils
See IGNITION SYSTEMS .
Purge Control Solenoid Valve
See EVAPORATIVE CONTROL under EMISSION SYSTEMS.
Wastegate Control Solenoid Valve
See TURBOCHARGED ENGINES under AIR INDUCTION SYSTEM.
FUEL SYSTEM
FUEL DELIVERY
Electric fuel pump, located in gas tank, feeds fuel through
in-tank fuel filter, external fuel filter (located in engine
compartment) and fuel injector rail.
Fuel Pump
Fuel pump consists of a motor-driven impeller. Pump has an
internal check valve to maintain system pressure, and a relief valve
to protect fuel pressure circuit. Pump receives voltage supply from
MFI control relay.
Fuel Pressure Control Solenoid Valve (Turbo)
Valve prevents rough idle due to fuel percolation. On engine
restart, if engine coolant or intake air temperature reaches a preset
value, PCM applies voltage to fuel pressure control solenoid valve for
2 minutes after enginerestart. Valve will open, allowing atmospheric
pressure to be applied to fuel pressure regulator diaphragm. This
allows maximum available fuel pressure at injectors, enriching fuel
mixture and maintaining stable idle at high engine temperatures.
Fuel Pressure Regulator
Located on fuel injector rail, this diaphragm-operated relief
valve adjusts fuel pressure according to engine manifold vacuum.
As engine manifold vacuum increases (closed throttle), fuel

pressure regulator diaphragm opens relief valve, allowing pressure to
bleed off through fuel return line, reducing fuel pressure.
As engine manifold vacuum decreases (open throttle), fuel
pressure regulator diaphragm closes valve, preventing pressure from
bleeding off through fuel return line, increasing fuel pressure.
FUEL CONTROL
Fuel Injectors
Fuel is supplied to engine through electronically pulsed
(timed) injector valves located on fuel rail(s). PCM controls amount\
of fuel metered through injectors based on information received from
sensors.
IDLE SPEED
Air Conditioning (A/C) Relay
When A/C is turned on with engine at idle, PCM signals IAC
motor to increase idle speed. To prevent A/C compressor from switching
on before idle speed has increased, PCM momentarily opens A/C relay
circuit.
Idle Air Control (IAC) Motor
Motor controls pintle-type air valve to regulate volume of
intake air at idle.
During start mode, PCM controls idle intake air volume
according to Engine Coolant Temperature (ECT) sensor input. After
starting, with idle position switch activated (throttle closed), fast
idle speed is controlled by IAC motor and fast idle air control valve
(if equipped).
When idle switch is deactivated (throttle open), IAC motor
moves to a preset position in accordance with ECT sensor input.
PCM signals IAC motor to increase engine RPM in the following
situations: A/T (if applicable) is shifted from Neutral to Drive, A/C
is turned on, or power steering pressure reaches a preset value.
IGNITION SYSTEMS
DIRECT IGNITION SYSTEM (DIS)
Depending on number of cylinders, ignition system is a 2 or
3-coil, distributorless ignition system. On Eclipse (Turbo) and DOHC
V6 engines, Camshaft Position (CMP) sensor is located beside camshaft,\
in front of engine. On all other engines equipped with DIS, CMP sensor
is a separate unit mounted in place of distributor. On DOHC 4-
cylinder, DOHC V6 and 1.8L 4-cylinder engines with California
emissions, Crankshaft Position (CKP) sensor is located beside
crankshaft, in front of engine. PCM determines TDC based on pulse
signals received from sensors and then controls MFI and ignition
timing.
Power Transistors & Ignition Coils
Based on crankshaft position and CMP sensor inputs, PCM
controls timing and directly activates each power transistor to fire
coils. On 4-cylinder engines, power transistor "A" controls primary
current of ignition coil "A" to fire spark plugs on cylinders No. 1
and No. 4 at the same time. Power transistor "B" controls primary
current of ignition coil "B" to fire spark plugs on cylinders No. 2
and No. 3 at the same time. On V6 engines, companion cylinders No. 1
and 4, 2 and 5, and 3 and 6 are fired together.
On all models, although each coil fires 2 plugs at the same
time, ignition takes place in only one cylinder, since the other

cylinder is on its exhaust stroke when plug fires.
HALL EFFECT IGNITION SYSTEM
This system is equipped with a Hall Effect distributor.
Shutter(s) attached to distributor shaft rotate through distributor
Hall Effect switch, also referred to as a Camshaft Position (CMP)
sensor, which contains a distributor pick-up (a Hall Effect device and
magnet). As shutter blade(s) pass through pick-up, magnetic field is
interrupted and voltage is toggled between high and low. PCM uses this
data along with Crankshaft Position (CKP) sensor data to control
ignition timing and injector pulse width to maintain optimum
driveability.
Power Transistor & Ignition Coil
Power transistor is mounted inside distributor with disc and
optical sensing unit. When ignition is on, ignition coil primary
circuit is energized. As distributor shaft rotates, disc rotates,
triggering optical sensing unit. PCM receives signals from optical
sensing unit. Signals are converted and sent to power transistor,
interrupting primary current flow and inducing secondary voltage.
IGNITION TIMING CONTROL SYSTEM
Ignition timing is controlled by PCM. PCM adjusts timing
based on various conditions such as engine temperature, altitude and
detonation.
EMISSION SYSTEMS
EXHAUST GAS RECIRCULATION (EGR) CONTROL
Federal Emissions (Non-Turbo)
To lower oxides of nitrogen (NOx) exhaust emissions, a non-
computer controlled exhaust gas recirculation system is used. EGR
operation is controlled by throttle body ported vacuum. Vacuum is
routed through vacuum control valve to prevent EGR operation at low
engine temperatures.
Spring pressure holds EGR valve closed during low vacuum
conditions (engine idling or wide open throttle). When vacuum pressure\
increases and overcomes EGR spring pressure, EGR valve is lifted to
allow exhaust gases to flow into intake manifold for combustion.
California Emissions & Turbo
PCM controls EGR operation by activating EGR control solenoid
valve according to engine load. When engine is cold, PCM signals EGR
control solenoid valve to deactivate EGR.
EGR Control Solenoid Valve
Valve denies or allows vacuum supply to EGR valve based on
PCM commands.
EVAPORATIVE CONTROL
Fuel evaporation system prevents fuel vapor from entering
atmosphere. System consists of special fuel tank with vapor separator
tanks (if equipped), vacuum relief filler cap, overfill limiter (2-wa\
y
valve), fuel check valve, thermovalve (if equipped), charcoal
canister, purge control valve, purge control solenoid valve, and
connecting lines and hoses.
Purge Control Solenoid Valve

Fuel Pump Check Connector Taped to wiring harness, on
right side of firewall.
Ignition Timing Adjustment
Connector Taped to wiring harness, on
right side of firewall.
Ignition Coil Top left side of engine.