ENGINE PERFORMANCE – Subaru Impreza WRX 2002 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L

2.0L, Engine Performance Wiring Diagrams (1 of 4) for Subaru Impreza WRX 2002

List of elements for 2.0L, Engine Performance Wiring Diagrams (1 of 4) for Subaru Impreza WRX 2002:

• (behind left side of dash) diagnosis connector
• (behind right side of dash) main relay
• (left rear of eng) ge-1
• (right side of dash) gb-4
• A/c system
• A/t
• Acc
• B134
• B135
• B84
• Camshaft position sensor (left front of engine)
• Crankshaft position sensor (lower front of engine)
• Defogger system
• Engine control module (behind right side of dash)
• Exterior lights system
• Ge-1 (left rear of eng)
• Ge-2 (right side of engine)
• Hot at all times
• Ignition switch
• Knock sensor (left side of eng)
• Left tgv
• M/t
• Mass airflow sensor (right side of engine compt, in air intake duct)
• Nca
• Neutral position switch (m/t)
• Off
• Power steering oil pressure switch (right front of engine)
• Red
• Right tgv
• Shield
• Shield & sensor ground joint connector (right side of dash)
• Start
• Starting system

2.0L, Engine Performance Wiring Diagrams (2 of 4) for Subaru Impreza WRX 2002

List of elements for 2.0L, Engine Performance Wiring Diagrams (2 of 4) for Subaru Impreza WRX 2002:

• (behind left side of dash) check connector
• (left rear of eng) ge-1
• A/t
• B152
• B52
• B54
• B55
• B56
• Engine coolant temperature sensor &thermometer (top right front of engine)
• Exhaust gas temperature sensor (in right exhaust system)
• F37
• Fuse & relay box (behind left side of dash)
• Fuse 15a
• Fuse 30a
• Hot in on & start
• Left tgv angle sensor (top left front of engine)
• Line end connector
• M/t
• Main fuse box (on left side of engine compt)
• Pressure sensor (at top rear of engine)
• Red
• Right tgv angle sensor (top center of engine)
• Throttle position sensor (on throttle body assembly)
• Transmission control module (behind left side of dash)
• Vehicle speed sensor (m/t) (right side of trans case)

2.0L, Engine Performance Wiring Diagrams (3 of 4) for Subaru Impreza WRX 2002

List of elements for 2.0L, Engine Performance Wiring Diagrams (3 of 4) for Subaru Impreza WRX 2002:

• (left of steering column) data link connector
• (left rear of eng) ge-1
• B158
• Combination meter
• Cpu
• Drain valve (under right rear of vehicle)
• Flash memory connector
• Fuel level sensor
• Fuel pump
• Fuel pump assembly
• Fuel pump controller (right side of cargo area)
• Fuel pump relay (behind right side of dash)
• Fuel sub level sensor (top of fuel tank)
• Fuel tank pressure sensor (top center of fuel tank)
• Fuel temperature sensor
• Fuse & relay box (behind left side of dash)
• Fuse 10a
• Gb-4 (behind right side of dash)
• Gb-7 (behind center of dash)
• Hot in on & start
• I10
• I11
• I12
• Mal- function indicator light
• Oil pres- sure warning light
• Oil pressure switch (on front of engine)
• Pressure control solenoid valve (under rear center of vehicle)
• R58
• Red
• Speedometer
• Tach
• Temp gauge

2.0L, Engine Performance Wiring Diagrams (4 of 4) for Subaru Impreza WRX 2002

List of elements for 2.0L, Engine Performance Wiring Diagrams (4 of 4) for Subaru Impreza WRX 2002:

• (left rear of eng) ge-1
• (left rear of engine)
• (left rear of engine) ge-1
• A/c system
• B136
• B137
• Cooling fan system
• Engine control module (behind right side of dash)
• Front oxygen (a/f) sensor (front of catalytic converter)
• Fuel injectors
• Ge-1
• Ge-1 (left rear of eng)
• Idle air control solenoid valve (top rear of engine)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Nca
• Pnk
• Purge control solenoid valve (on intake manifold)
• Rear oxygen sensor (rear of catalytic converter)
• Red
• Shield
• Wastegate solenoid (right side of engine compt)

2.5L

2.5L, Engine Performance Wiring Diagrams (1 of 3) for Subaru Impreza WRX 2002

List of elements for 2.5L, Engine Performance Wiring Diagrams (1 of 3) for Subaru Impreza WRX 2002:

• (behind right side of dash) main relay
• (m/t)
• (pin 5 not used)
• (pins 22-23 not used)
• A/t
• Air conditioning
• Air conditioning system
• B135
• B136
• Braided
• Camshaft position sensor (left front of engine)
• Crankshaft position sensor (lower front of engine)
• Defogger system
• Engine control module (behind right side of dash)
• Exterior light system
• F37
• Fuse 30a
• Gb-4 (behind right side of dash)
• Ge (center rear of engine)
• Hot at all times
• Knock sensor (left side of engine)
• M/t
• Main fuse box (left side of engine compt)
• Nca
• Neutral position switch (left side of transmission)
• Power steering oil pressure switch (left front of engine)
• Pressure sensor & intake air temperature sensor (top of engine, behind generator)
• Red
• Shield joint connector (behind right kick panel)
• Starting system

2.5L, Engine Performance Wiring Diagrams (2 of 3) for Subaru Impreza WRX 2002

List of elements for 2.5L, Engine Performance Wiring Diagrams (2 of 3) for Subaru Impreza WRX 2002:

• (behind dash, left of steering column)
• (behind left side of dash) check connector
• (behind right side of dash) fuel pump relay
• (behind right side of dash) sensor ground joint connector
• (below right front seat) gb-7
• (center rear of engine) ge
• (right kick panel) gb-3
• (top center of fuel tank) fuel tank pressure sensor
• A/t
• A13
• A21
• Atmospheric pressure sensor (on front of right front strut tower)
• B13
• B152
• B20
• Braided
• Catalytic converter)
• Cluster system instrument
• Data link connector
• Engine coolant temperature sensor & thermometer (top right front of engine)
• Front oxygen sensor (a/f) (front of front catalytic converter)
• Fuel gauge
• Fuel pump assembly
• Fuel sub level sensor (top of fuel tank)
• Fuel temp sensor
• Fuse & relay box (behind left side of dash)
• Fuse 15a
• Ge (center rear of engine)
• Hot in on or start
• M/t
• Nca
• Rear oxygen sensor (rear of rear
• Red
• Sub gauge
• Throttle position sensor (on throttle body assembly)
• Transmission control module (behind left side of dash)
• Vehicle speed sensor (m/t) (right side of transmission case)

2.5L, Engine Performance Wiring Diagrams (3 of 3) for Subaru Impreza WRX 2002

List of elements for 2.5L, Engine Performance Wiring Diagrams (3 of 3) for Subaru Impreza WRX 2002:

• (on intake manifold) purge control solenoid valve
• (top front of eng) air assist injector solenoid valve
• (under right rear of vehicle) drain valve
• (under right rear of vehicle) pressure control solenoid valve
• Air conditioning system
• B134
• B158
• B52
• Cooling fans system
• Diagnosis connector (behind
• Engine control module (behind right side of dash)
• Fuel guage
• Fuel injectors
• Fuse & relay box (behind left side of dash)
• Fuse 10a
• Fuse 15a
• Ge (center rear of engine)
• Hot in on or start
• I-10
• I-12
• Idle air control solenoid valve (on front of engine)
• Ignition coil & ignitor assembly (top front of engine)
• Instrument cluster
• Left side of dash)
• Line end connector (behind
• Malfunction indicator lamp
• Pnk
• Red
• Right kick panel)
• Speedometer & tachometer circuit