Mitsubishi Galant 9G. Manual - part 172

MULTIPORT FUEL INJECTION (MFI) SYSTEM <3.8L ENGINE>

TSB Revision

CIRCUIT DIAGRAMS

90-50

MULTIPORT FUEL INJECTION (MFI) SYSTEM <3.8L ENGINE> (CONTINUED)

THROTTLE 
BODY 
ASSEMBLY

POWERTRAIN
CONTROL
MODULE

MANIFOLD
ABSOLUTE
PRESSURE SENSOR

ENGINE
COOLANT
TEMPERATURE
SENSOR

POWER STEERING
PRESSURE
SWITCH

THROTTLE 
ACTUATOR 
CONTROL 
MOTOR

(MAIN)

(SUB)

HALL IC

HALL IC

MULTIPORT FUEL INJECTION (MFI) SYSTEM <3.8L ENGINE>

TSB Revision

CIRCUIT DIAGRAMS

90-51

ACCELE-
RATOR
PEDAL
POSITION
SENSOR

FUEL
PUMP
MODULE

FUEL LEVEL
SENSOR
(MAIN)

FUEL TANK
TEMPERATURE
SENSOR

IMMOBILIZER
SYSTEM

MULTI- 
CENTER
DISPLAY <LOW>

FUEL 
TANK 
DIFFERENTIAL 
PRESSURE 
SENSOR

·FUEL WARNING
 LIGHT
·METER AND
 GAUGE

WIRE COLOR CODE
B : BLACK     SB : SKY BLUE 
BR : BROWN     LG : LIGHT GREEN
G : GREEN P : PINK     GR : GRAY
R : RED     L : BLUE     Y : YELLOW
V : VIOLET     W : WHITE     O : ORANGE

(SUB)

(MAIN)

HALL IC

HALL IC

MULTIPORT FUEL INJECTION (MFI) SYSTEM <3.8L ENGINE>

TSB Revision

CIRCUIT DIAGRAMS

90-52

MULTIPORT FUEL INJECTION (MFI) SYSTEM <3.8L ENGINE> (CONTINUED)

MFI RELAY

EXHAUST GAS
RECIRCULA-
TION VALVE

CRANKSHAFT
POSITION
SENSOR

AUTO-CRUISE
CONTROL SYSTEM

EVAPORATIVE
EMISSION
PURGE
SOLENOID

LEFT BANKHEATED 
OXYGENSENSOR 
(FRONT)

RIGHT BANK HEATED 
OXYGENSENSOR 
(FRONT)

MULTIPORT FUEL INJECTION (MFI) SYSTEM <3.8L ENGINE>

TSB Revision

CIRCUIT DIAGRAMS

90-53

LEFT BANK HEATED 
OXYGEN SENSOR 
(REAR)

RIGHT BANK HEATED 
OXYGEN SENSOR 
(REAR)

KNOCK
SENSOR

INJECTOR
2

INJECTOR
4

INJECTOR
6

INJECTOR
1

INJECTOR
3

INJECTOR
5

POWERTRAIN
CONTROL
MODULE

WIRE COLOR CODE
B : BLACK     LG : LIGHT GREEN     G : GREEN     L : BLUE     W : WHITE     Y : YELLOW
SB : SKY BLUE     BR : BROWN     O : ORANGE     GR : GRAY     R : RED     P : PINK     V : VIOLET