Mitsubishi Lancer Evolution IX. Manual - part 18

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-51

RELAY 
BOX

BATTERY

ENGINE
CONTROL 
RELAY

BATTERY 
BACK-UP

IGNITION
SYSTEM

POWER
SOURCE

·AUTOMATIC
 AIR CONDITIONER
·COOLING
 SYSTEM

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-52

ENGINE CONTROL SYSTEM <RH drive vehicles> (CONTINUED)

ENGINE
CONTROL
RELAY

ENGINE
CONTROL
RELAY

ENGINE
CONTROL
RELAY

ENGINE-
ECU

DETONATION
SENSOR

EXHAUST
CAMSHAFT
POSITION
SENSOR

CRANK
ANGLE
SENSOR

OXYGEN SENSOR 

(FRONT)

INTAKE
CAMSHAFT
POSITION
SENSOR

J/C(6)

TRANSMISSION
OIL TEMPERATURE
WARNING LAMP

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-53

ENGINE 
COOLANT 
TEMP-
ERATURE 
SENSOR

OXYGEN SENSOR(REAR)

THROTTLE
POSITION 
SENSOR

AIR
FLOW
SENSOR

BAROMETRIC 
PRESSURE 
SENSOR

INTAKE AIR 
TEMPERATURE 
SENSOR

ACD
AND
AYC

J/C (6)

ENGINE
CONTROL
RELAY

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Grey     R : Red     P : Pink     V : Violet     PU : Purple  

ENGINE CONTROL SYSTEM

CIRCUIT DIAGRAMS

90-54

ENGINE CONTROL SYSTEM <RH drive vehicles> (CONTINUED)

CHARGING
SYSTEM

IGNITION
SYSTEM

STARTING
SYSTEM

ENGINE CONTROL RELAY

FUEL
PRESSURE
CONTROL
SOLENOID
VALVE

WASTEGATE
SOLENOID
VALVE

PURGE
CONTROL
SOLENOID
VALVE

EGR
CONTROL
SOLENOID
VALVE

POWER
STEERING FLUID
PRESSURE
SWITCH

ENGINE SPEED
DETECTION
CONNECTOR