fuel MITSUBISHI 380 2005 User Guide

MULTIPOINT FUEL INJECTION (MPI) SYSTEM
CIRCUIT DIAGRAMS90-28
MULTIPORT FUEL INJECTION (MPI) SYSTEM (CONTINUED)

BRAKE WARNING LAMP, OIL PRESSURE WARNING LAMP, FUEL WARNING LAMP
CIRCUIT DIAGRAMS90-60
BRAKE WARNING LAMP, OIL PRESSURE WARNING LAMP,
FUEL WARNING LAMP
M1901011800848

BRAKE WARNING LAMP, OIL PRESSURE WARNING LAMP, FUEL WARNING LAMP
CIRCUIT DIAGRAMS90-61

RELAY
COMPONENT LOCATIONS70-6
RELAYM1701000400381
NAME SYMBOL NAME SYMBOL
A/C compressor clutch relay A Fuel pump relay (2) C
A/T control relay A Horn relay A
Accessory socket relay C Rear window defogger relay C
Blower relay C MPI relay A
Fan control relay A Power window relay C
Fog Lamp relay A Rear window defogger relay C
Fuel pump relay (1) C

INSPECTION TERMINAL
COMPONENT LOCATIONS70-8
INSPECTION TERMINALM1701000200354
SENSORM1701000600415
NAME SYMBOL NAME SYMBOL
A/C pressure sensor I Interior temperature sensor A/C>S
A/T control solenoid valve assembly
(Incorporating transmission fluid
temperature sensor)N Knock sensor C
Accelerator pedal position sensor R Left bank heated oxygen sensor (front)
<3.8L Engine>P
Air thermo sensor T Left bank heated oxygen sensor (rear)
<3.8L Engine>P
Ambient temperature sensor L Manifold absolute pressure sensor B
Camshaft position sensor D Mass airflow sensor G
Crankshaft position sensor A Sunroof assembly (Incorporating pulse
sensor)U
Fuel pump module (Incorporating fuel
level sensor (main) and fuel tank
temperature sensor)W Output shaft speed sensor H
Fuel level sensor (sub) V Photo sensor Q
Right bank heated oxygen sensor
(front) <3.8L Engine>O
Input shaft speed sensor K Right bank heated oxygen sensor (rear)
<3.8L Engine>O

INTAKE MANIFOLD
INTAKE AND EXHAUST15-7
INTAKE MANIFOLD
REMOVAL AND INSTALLATION M1151003000802
Pre-removal Operation
Fuel Discharge Prevention [Refer to GROUP 13B,
On-vehicle Service
Fuel Pump Relay Disconnection
(How to Reduce Pressurized Fuel Lines) 13A-663.]
Intake Manifold Plenum Removal (Refer to P.15-5.)Post-installation Operation
Intake Manifold Plenum Installation (Refer to P.15-5.)
Fuel Leakage Inspection
REMOVAL STEPS
1. INJECTOR CONNECTOR
2. ENGINE MOUNTING STAY
>>C<<3. FUEL HIGH-PRESSURE HOSE
CONNECTION
5. BLOW-BY HOSE
<>6. FUEL RAIL AND INJECTOR
7. PCV HOSE CONNECTION8. TIMING BELT FRONT UPPER
COVER, RIGHT
9. TIMING BELT FRONT UPPER
COVER, LEFT
10. WATER PUMP BRACKET>>B<<11. INTAKE MANIFOLD
>>A<<12. INTAKE MANIFOLD GASKET
13. CONTROL HARNESS CLAMPREMOVAL STEPS (Continued)

INTAKE MANIFOLD
INTAKE AND EXHAUST15-8
REMOVAL SERVICE POINT
.
<> FUEL RAIL AND INJECTOR REMOVAL
Care must be taken when removing the fuel rail not to drop
the injector.
Remove the fuel rail with the injectors attached to it.
INSTALLATION SERVICE POINTS
.
>>A<< INTAKE MANIFOLD GASKET INSTALLA-
TION
Install the gasket with the protrusions in the position illustrated.
.
>>B<< INTAKE MANIFOLD INSTALLATION
1. Coat the intake manifold mounting studs with engine oil.
2. Tighten the intake manifold mounting nuts by the following
procedure.
.
ORDER MOUNTING NUTS TIGHTENING TORQUE
1st Right-bank nuts 6.5
1.5 Nm (58 13 in-lb)
2nd Left-bank nuts 22
1 Nm (16 1 ft-lb)
3rd Right-bank nuts 22
1 Nm (16 1 ft-lb)
4th Left-bank nuts 22
1 Nm (16 1 ft-lb)
5th Right-bank nuts 22
1 Nm (16 1 ft-lb)

INTAKE MANIFOLD
INTAKE AND EXHAUST15-9
>>C<< FUEL HIGH-PRESSURE HOSE
INSTALLATION
Be careful not to allow any engine oil to enter the fuel
rail.
Be careful not to bend the fuel high-pressure hose as it
is made of plastics.
1. When connecting the fuel high-pressure hose to the fuel rail,
apply a small amount of new engine oil to the O-ring and
then insert the fuel high-pressure hose, being careful not to
damage the O-ring.
2. While turning the fuel high-pressure hose to the left and
right, install it to the fuel rail.
3. Check that the injector turns smoothly. If it does not turn
smoothly, the O-ring may be trapped. Remove the fuel
high-pressure hose and then re-insert it into the fuel rail and
check again.
INSPECTIONM1151003100672
Check the following points; replace the part if a problem is
found.
.
Intake Manifold Check
1. Check for damage or cracking of any part.
2. Clogging of the negative pressure (vacuum) outlet port.
3. Using a straight edge and feeler gauge, check for distortion
of the cylinder head installation surface.
Standard value: 0.15 mm (0.006 inch) or less
Limit: 0.20 mm (0.008 inch)

SPECIFICATIONS
INTAKE AND EXHAUST15-16
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONSM1151006800506
ITEMSPECIFICATION
Air cleaner
Air cleaner bolt 8.8
1.0 Nm (78 9 in-lb)
Air cleaner bracket bolt and nut 12
2 Nm (102 22 in-lb)
Air cleaner resonator bolt 8.8
1.0 Nm (78 9 in-lb)
Air intake hose clamp bolt 4.0
0.9 Nm (35 8 in-lb)
Airflow sensor nut 8.0
1.0 Nm
Exhaust manifold
Exhaust manifold nut 44
5 Nm (33 3 ft-lb)
Front exhaust pipe bolt 49
9 Nm (37 6 ft-lb)
Exhaust manifold stay, left A bolt M8 19
3 Nm (14 2 ft-lb)
Exhaust manifold stay, left B bolt M10 44
8 Nm (33 5 ft-lb)
Heat protector bolt 14
1 Nm (120 13 in-lb)
Heated oxygen sensor 44
5 Nm (33 3 ft-lb)
Exhaust manifold
Exhaust manifold nut 44
5 Nm (33 3 ft-lb)
Exhaust manifold stay, right A bolt M12 75
10 Nm (55 7 ft-lb)
Exhaust manifold stay, right B bolt M10 44
5 Nm (33 3 ft-lb)
Heat protector bolt 14
1 Nm (120 13 in-lb)
Heated oxygen sensor 44
5 Nm (33 3 ft-lb)
Exhaust pipe and main muffler
Crossmember stay bolt 45
5 Nm (34 3 ft-lb)
Center exhaust pipe nut 49
9 Nm (37 6 ft-lb)
Front floor backbone brace bolt 22
4 Nm (16 3 ft-lb)
Front no.1 exhaust pipe bolt 35
4 Nm (26 3 ft-lb)
Front no.1 exhaust pipe to front no.2 exhaust pipe bolt 49
4 Nm (37 3 ft-lb)
Front no.1 exhaust pipe to right bank exhaust manifold nut 49
9 Nm (37 6 ft-lb)
Front no.1 exhaust pipe to left bank exhaust manifold bolt 49
9 Nm (37 6 ft-lb)
Hanger bolt 12
2 Nm (107 17 in-lb)
Main muffler bolt 49
4 Nm (37 3 ft-lb)
Heat protector bolt 14
1 Nm (120 13 in-lb)
Intake manifold
Control harness clamp bolt 11
1 Nm (98 8 in-lb)
Engine mounting stay bolt 36
6 Nm (27 4 ft-lb)
Fuel rail and injector bolt 12
1 Nm (102 13 in-lb)
Intake manifold bolt 22
1 Nm (16 1 ft-lb)
Timing belt front upper cover bolt M6 11
1 Nm (98 8 in-lb)
M8 14
1 Nm (120 13 in-lb)

IGNITION SYSTEM
ENGINE ELECTRICAL16-31
ON-VEHICLE SERVICE
KNOCK CONTROL SYSTEM CHECKM1163001800081
Check the knock sensor circuit if diagnostic trouble code, No.
P0325 is shown.
Refer to GROUP 13B, Multiport Fuel Injection (MPI)
Multiport
Fuel Injection (MPI) Diagnosis
Diagnostic Trouble Code Pro-
cedures
DTC P0325 : Knock Sensor Circuit 13A-346.
IGNITION COIL CHECK M1163001200380
Check by the following procedure, and replace the coil if there
is a malfunction.
.
PRIMARY COIL AND IGNITION POWER
TRANSISTOR CONTINUITY CHECK
NOTE: No test can be performed on the Primary side of coil.
.
SECONDARY COIL CHECK
NOTE: It is impossible to check the secondary coil through the
continuity check as a diode is integrated in the secondary coil
circuit of this ignition coil. Accordingly, check the secondary coil
in the following procedure.
1. Disconnect the ignition coil connector.
2. Remove the ignition coil and install a new spark plug to the
ignition coil.
3. Connect the ignition coil connector.
4. Disable vehicle fuel pump by removing fuel pump relay or
disconnecting fuel pump connector D-18 (under rear seat).
5. Ground the side electrode of the spark plug and crank the
engine.
6. Check that spark is produced between the electrodes of the
spark plug.
7. If no spark is produced, replace the ignition coil with a new
one and recheck.
8. If spark is produced with the new ignition coil, replace the
old one as it is faulty. If no spark is produced again, the
ignition circuit is suspected as faulty. Check the ignition
circuit.