ENGINE PERFORMANCE – Subaru Impreza WRX STi 2011 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.5L

2.5L, Engine Performance Wiring Diagram (1 of 4) for Subaru Impreza WRX STi 2011

List of elements for 2.5L, Engine Performance Wiring Diagram (1 of 4) for Subaru Impreza WRX STi 2011:

• (right fuse & relay box) a/f oxygen sensor relay
• (right fuse & relay box) electronic throttle control relay
• (right fuse & relay box) ignition relay
• (right fuse & relay box) main relay
• B134
• B137
• B186
• B21
• B21 e2
• E2 b21
• Engine control module (right side of dash)
• Fuse 15a
• Ge-1 (top center of engine)
• Ge-2 (top center of engine)
• Hot at all times
• Ignition coil & igniter assembly (top right side of engine)
• Left oil switching solenoid valve (left rear of engine)
• Left variable valve lift diagnosis oil pressure switch (left front of engine)
• Main fuse box (m/b) (left rear of engine compt)
• Nca
• Oil temperature sensor (top right side of engine)
• Pcv diagnosis connector
• Pnk
• Power steering oil pressure switch (right front of engine)
• Red
• Right oil switching solenoid valve (right rear of engine)
• Right variable valve lift diagnosis oil pressure switch (right front of engine)

2.5L, Engine Performance Wiring Diagram (2 of 4) for Subaru Impreza WRX STi 2011

List of elements for 2.5L, Engine Performance Wiring Diagram (2 of 4) for Subaru Impreza WRX STi 2011:

• (top of fuel tank) fuel pump assembly
• B21
• B21 e2
• B36
• B52
• B97 r1
• Combination meter
• Computer data lines system
• Drive circuit
• Ect ind
• Front oxygen (a/f) sensor (front of front catalytic converter)
• Fuel pump
• Fuel pump relay
• Fuel temperature sensor
• Fuse & relay box (f/b)
• Fuse 10a
• Fuse 15a
• Gb-11 (under center console)
• Gb-7 (near right "c" pillar)
• Ge-1 (top center of engine)
• Hot at all times
• Hot in on or start
• I/f
• J/c i97 (left side of dash)
• Light ind warning ect
• Light ind warning oil pressure
• Micro computer
• Mil ind
• Nca
• Oil pressure switch (front of engine)
• Pnk
• Purge control solenoid valve (on intake manifold)
• R15
• R168
• R2 b98
• R57
• Rear oxygen sensor (rear of transmission)
• Receiver transceiver & can
• Red
• Right fuse & relay box (f/b) (right side of dash)
• Right fuse & relay box (right side of dash)
• Tacho- meter

2.5L, Engine Performance Wiring Diagram (3 of 4) for Subaru Impreza WRX STi 2011

List of elements for 2.5L, Engine Performance Wiring Diagram (3 of 4) for Subaru Impreza WRX STi 2011:

• (left side of dash) accelerator pedal position sensor
• (left side of dash) j/c b440 & b441
• (right side of dash) j/c b122
• (right side of dash) j/c b83
• (right side of engine compt) mass air flow & intake air temperature sensor
• (top of fuel tank) fuel tank pressure sensor
• B21
• B363
• B364
• B440
• B441
• B75
• B76
• B97
• B98
• B99
• Connector
• Delivery (test) mode connector (right side of dash)
• Drain valve (under left rear of vehicle)
• Egr valve (rear of engine)
• Electronic throttle control (at throttle body)
• Engine coolant temperature sensor (top center of engine)
• Ge-2 (top center of engine)
• Manifold absolute pressure sensor (top rear of engine)
• Nca
• Pnk
• Pressure control solenoid valve (under center rear of vehicle)
• R15 r57
• R57 r15
• R81
• R82
• Red
• Test mode sub

2.5L, Engine Performance Wiring Diagram (4 of 4) for Subaru Impreza WRX STi 2011

List of elements for 2.5L, Engine Performance Wiring Diagram (4 of 4) for Subaru Impreza WRX STi 2011:

• (left front of engine) fuel injector 2
• (left rear of engine) fuel injector 4
• (left side of dash) clutch switch
• (right front of engine) fuel injector 1
• (right rear of engine) fuel injector 3
• Air conditioning system
• B135
• B136
• B145
• B186
• B21
• B36
• B98
• Camshaft position sensor (left front of engine)
• Computer data lines system
• Cooling fans system
• Crankshaft position sensor (lower front of engine)
• Cruise control system
• Engine control module (right side of dash)
• Fuse & relay box (f/b)
• Fuse 10a
• Fuse 7.5a
• Ge-2 (top center of engine)
• Hot at all times
• Hot in on or start
• Instrument cluster system
• Knock sensor (center rear of engine)
• Main fuse box (m/b) (left rear of engine compt)
• Nca
• Pnk
• Red
• Sbf 5 fuse 30a
• Sbf 7 fuse 30a
• Starting/ charging system
• Starting/charging system

2.5L TURBO

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (1 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (1 of 5) for Subaru Impreza WRX STi 2011:

• (left side of dash) clutch switch
• (left side of dash) data link connector
• (left side of dash) j/c b440, b442 & b438
• (right side of dash) delivery (test) mode connector b75
• (right side of dash) j/c b122
• Accelerator pedal position sensor (left side of dash)
• Air conditioning system
• B128
• B135
• B136
• B36
• B364 b363
• B438
• B440
• B441
• B76
• B97
• B98
• B98 r2
• Computer data lines system
• Cooling fans system
• Cruise control system
• Electronic throttle control relay (right fuse & relay box)
• Engine control module (right side of dash)
• Fuel tank pressure sensor (top of fuel tank)
• Fuse 15a
• I53
• Instrument cluster system starting/ charging system
• J/c b83 (right side of dash)
• Mass air flow & intake air temperature sensor (right side of engine compt)
• Multi select switch
• Nca
• Neutral position switch (m/t) (left side of transmission)
• Pnk
• R15
• R15 r57
• R2 b98
• R57
• R98
• Red
• Right fuse & relay box (f/b) (right side of dash)
• Starting/charging system
• T12
• Test mode sub connector

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (2 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (2 of 5) for Subaru Impreza WRX STi 2011:

• (near right "c" pillar)
• (right fuse & relay box) (a/f) & oxygen sensor relay
• (right fuse & relay box) main relay
• B145
• B186
• B97
• B98
• B99
• Buzzer
• Can tranceiver & receiver
• Combination meter
• Computer data lines system
• Drain valve (under left rear of vehicle)
• Drive circuit
• Engine coolant temperature gauge
• Fuel pump assembly (top of fuel tank)
• Fuel pump control module (sedan: right rear of trunk) (wagon: right rear quarterpanel)
• Fuel pump relay (right fuse & relay box)
• Fuel temp sensor
• Fuse 15a
• Fuse 7.5a
• Fuse sbf-5 30a
• Fuse sbf-7 30a
• Gb-11 (under center console)
• Gb-3 (right end of dash)
• Gb-7
• Hot at all times
• I ind
• I/f
• Ind light malfunction
• Ind light shift up
• Ind reverse
• Instrument cluster system
• J/c i97 (left side of dash)
• Main fuse box (m/b) (left rear of engine compt)
• Micro computer
• Nca
• Oil pressure
• Pnk
• Power circuit
• Pressure control solenoid valve (under center rear of vehicle)
• R15
• R57
• R81
• R82
• Red
• S ind
• Speedo- meter
• Tacho- meter
• Warning ind

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (3 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (3 of 5) for Subaru Impreza WRX STi 2011:

• (turbo: right rear of engine)
• B143
• B144
• B19
• B21
• B36
• B52
• F37
• Front oxygen (a/f) sensor (front of front catalytic converter)
• Fuse & relay box (f/b)
• Fuse 10a
• Fuse 15a
• Fuse 60a
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Hot at all times
• Hot in on or start
• I102
• J/c b138 (right side of dash)
• Main fuse box (m/b) (left rear of engine compt)
• Nca
• Oil pressure switch (front of engine)
• Purge control solenoid valve 2 (on intake manifold)
• R167
• R168
• Rear oxygen sensor (rear of transmission)
• Red
• Relay holder (left rear of engine compt)
• Right secondary air combination valve (ho-turbo: rear of engine)
• Secondary air combination valve relay 1
• Secondary air combination valve relay 2
• Secondary air pump (left front of engine compt)
• Secondary air pump relay
• Wastegate control solenoid valve (ho-turbo: right rear of engine) (turbo: right side of engine)

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (4 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (4 of 5) for Subaru Impreza WRX STi 2011:

• (left front of engine) ignition coil 2
• (left front of engine) left exhaust oil flow control solenoid valve
• (left front of engine) left intake oil flow control solenoid valve
• (right front of engine) ignition coil 1
• (right front of engine) right exhaust oil flow control solenoid valve
• (right front of engine) right intake oil flow control solenoid valve
• (turbo: left front of engine) (ho-turbo: left rear of engine) ignition coil 4
• (turbo: right front of engine) (ho-turbo: right rear of engine) ignition coil 3
• B21
• Crankshaft position sensor (lower front of engine)
• E2 b21
• Ge (ho-turbo: top right side of engine) (turbo: top left of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Knock sensor (rear of engine)
• Left exhaust camshaft position sensor (ho-turbo: left front of engine)
• Left intake camshaft position sensor (ho-turbo: left rear of engine)
• Manifold absolute pressure sensor (ho-turbo: top rear of engine) (turbo: top right rear of engine)
• Nca
• Purge control solenoid valve 1 (on intake manifold)
• Red
• Right exhaust camshaft position sensor (ho-turbo: right front of engine)
• Right intake camshaft position sensor (ho-turbo: right rear of engine)

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (5 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (5 of 5) for Subaru Impreza WRX STi 2011:

• (left front of engine) fuel injector 2
• (left rear of engine) fuel injector 4
• (right front of engine) fuel injector 1
• (right rear of engine) fuel injector 3
• (right rear of engine) leak diagnosis connector
• B134
• B137
• B21
• Electronic throttle control (at throttle body)
• Engine control module (right side of dash)
• Engine coolant temperature sensor (ho-turbo: top left front of engine) (turbo: top front of engine)
• Ge (ho-turbo: top right side of engine) (turbo: top left of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Left secondary air combination valve (ho-turbo: rear of engine) (turbo: left rear of engine)
• Left tumble generator valve assembly (left rear of engine)
• Nca
• Pnk
• Power steering oil pressure switch (right front of engine)
• Red
• Right tumble generator valve assembly (ho-turbo: right rear of engine) (turbo: right front of engine)

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (1 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (1 of 5) for Subaru Impreza WRX STi 2011:

• (left side of dash) clutch switch
• (left side of dash) data link connector
• (left side of dash) j/c b440, b442 & b438
• (right side of dash) delivery (test) mode connector b75
• (right side of dash) j/c b122
• Accelerator pedal position sensor (left side of dash)
• Air conditioning system
• B128
• B135
• B136
• B364 b363
• B438
• B440
• B441
• B76
• B97
• B98
• Computer data lines system
• Cooling fans system
• Cruise control system
• Electronic throttle control relay (right fuse & relay box)
• Engine control module (right side of dash)
• Fuel tank pressure sensor (top of fuel tank)
• Fuse 15a
• Instrument cluster system starting/ charging system
• J/c b83 (right side of dash)
• Mass air flow & intake air temperature sensor (right side of engine compt)
• Nca
• Neutral position switch (m/t) (left side of transmission)
• Pnk
• R15
• R2 b98
• R57
• Red
• Right fuse & relay box (f/b) (right side of dash)
• Starting/charging system
• Test mode sub connector

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (2 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (2 of 5) for Subaru Impreza WRX STi 2011:

• (near right "c" pillar)
• (right fuse & relay box) (a/f) & oxygen sensor relay
• (right fuse & relay box) main relay
• B145
• B186
• B36
• B97
• B98
• B99
• Can tranceiver & receicer
• Combination meter
• Computer data lines system
• Drain valve (under left rear of vehicle)
• Engine coolant temperature gauge
• Fuel pump assembly (top of fuel tank)
• Fuel pump control module (sedan: right rear of trunk) (wagon: right rear quarterpanel)
• Fuel pump relay (right fuse & relay box)
• Fuel temp sensor
• Fuse 15a
• Fuse 7.5a
• Fuse sbf-5 30a
• Fuse sbf-7 30a
• Gb-11 (under center console)
• Gb-3 (right end of dash)
• Gb-7
• Hot at all times
• I/f
• Instrument cluster system
• J/c i97 (left side of dash)
• Main fuse box (m/b) (left rear of engine compt)
• Malfunction ind light
• Micro computer
• Nca
• Oil pressure
• Pnk
• Power circuit
• Pressure control solenoid valve (under center rear of vehicle)
• R1 b97
• R15
• R2 b98
• R57
• R81 r82
• Red
• Speedo- meter
• Tacho- meter
• Warning ind

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (3 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (3 of 5) for Subaru Impreza WRX STi 2011:

• (turbo: left rear of engine)
• 10a
• 60a
• B143
• B144
• B19
• B21
• B36
• B52
• F37
• Front oxygen (a/f) sensor (front of front catalytic converter)
• Fuse & relay box (f/b)
• Fuse 10a
• Fuse 15a
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Hot at all times
• Hot in on or start
• J/c b138 (right side of dash)
• Left secondary air combination valve (ho-turbo: rear of engine)
• Main fuse box (m/b) (left rear of engine compt)
• Nca
• Oil pressure switch (front of engine)
• Purge control solenoid valve 2 (on intake manifold)
• R167 i102
• R168
• Rear oxygen sensor (rear of transmission)
• Red
• Relay holder (left rear of engine compt)
• Secondary air combination valve relay 1
• Secondary air combination valve relay 2
• Secondary air pump (left front of engine compt)
• Secondary air pump relay
• Wastegate control solenoid valve (ho-turbo: right rear of engine) (turbo: right side of engine)

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (4 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (4 of 5) for Subaru Impreza WRX STi 2011:

• (left front of engine) ignition coil 2
• (left side of engine) left oil flow control solenoid valve
• (right front of engine) ignition coil 1
• (right rear of engine) leak diagnosis connector
• (right side of engine) right oil flow control solenoid valve
• (turbo: left front of engine) (ho-turbo: left rear of engine) ignition coil 4
• (turbo: right front of engine) (ho-turbo: right rear of engine) ignition coil 3
• B21
• Crankshaft position sensor (lower front of engine)
• E2 b21
• Ge (ho-turbo: top right side of engine) (turbo: top left of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Knock sensor (rear of engine)
• Left camshaft position sensor (turbo: left rear of engine)
• Manifold absolute pressure sensor (ho-turbo:top rear of engine) (turbo: top right rear of engine)
• Nca
• Purge control solenoid valve 1 (on intake manifold)
• Red
• Right camshaft position sensor (turbo: right rear of engine)

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (5 of 5) for Subaru Impreza WRX STi 2011

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (5 of 5) for Subaru Impreza WRX STi 2011:

• (left front of engine) fuel injector 2
• (left rear of engine) fuel injector 4
• (right front of engine) fuel injector 1
• (right rear of engine) fuel injector 3
• B134
• B137
• B21
• Electronic throttle control (at throttle body)
• Engine control module (right side of dash)
• Engine coolant temperature sensor (ho-turbo: top left front of engine) (turbo: top front of engine)
• Ge (ho-turbo: top right side of engine) (turbo: top left of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Left tumble generator valve assembly (left rear of engine)
• Nca
• Pnk
• Power steering oil pressure switch (right front of engine)
• Red
• Right secondary air combination valve (ho-turbo: rear of engine) (turbo: right rear of engine)
• Right tumble generator valve assembly (right rear of engine)