ENGINE PERFORMANCE – Subaru Legacy Limited 2007 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.5L

2.5L, Engine Performance Wiring Diagram (1 of 4) for Subaru Legacy Limited 2007

List of elements for 2.5L, Engine Performance Wiring Diagram (1 of 4) for Subaru Legacy Limited 2007:

• (on right rear of engine) ge
• (right end of dash) oxygen (a/f) sensor relay
• (right kick panel) main relay
• (top of transmission)
• B134
• B137
• B145
• B186
• Electronic throttle control relay
• Engine control module (behind right side of dash)
• Fuse 15a
• Ge (center of dash)
• Hot at all times
• Inhibitor switch (a/t)
• Left oil switching solenoid valve
• Left vvl diagnosis oil pressure switch (rear of left cylinder head)
• Main fuse box (m/b) (left side of engine compt)
• Nca
• Neutral position switch (m/t)
• Oil temperature sensor (left rear of cylinder head)
• Pcv diagnosis connector
• Pnk
• Power steering oil pressure switch (on power steering oil pump)
• Red
• Right oil switching solenoid valve (right side of engine compt)
• Right vvl diagnosis oil pressure switch (rear of right cylinder head)
• Sbf-5 fuse 30a
• Sbf-7 fuse 30a

2.5L, Engine Performance Wiring Diagram (2 of 4) for Subaru Legacy Limited 2007

List of elements for 2.5L, Engine Performance Wiring Diagram (2 of 4) for Subaru Legacy Limited 2007:

• (in fuel tank) fuel pump assembly
• (left rear wheelwell) fuel pump condenser
• (sedan: under right front seat) (wagon:
• B52
• Combination meter
• Engine coolant temp gauge
• Front oxygen (a/f) sensor (top of engine)
• Fuel pump
• Fuel pump relay
• Fuel temp sensor
• Fuse & relay box (f/b) (left end of dash)
• Fuse 15a
• Gb-3
• Ge (center of dash)
• Ground joint connector i98
• Hot at all times
• Hot in on or start
• I/f
• I10
• Ignition coil & ignitor assembly (at rear of engine)
• Malfunction ind light
• Micro computer
• Nca
• Oil pressure switch (upper front center of engine)
• Oil pressure warning light
• Pnk
• Power circuit
• Purge control solenoid valve
• R168
• Rear oxygen sensor (left rear of transmission)
• Red
• Relay block
• Speedo- meter
• Tacho- meter
• Under front passenger seat) gb-8

2.5L, Engine Performance Wiring Diagram (3 of 4) for Subaru Legacy Limited 2007

List of elements for 2.5L, Engine Performance Wiring Diagram (3 of 4) for Subaru Legacy Limited 2007:

• (behind rear bumper) fuel tank pressure sensor
• (left center of dash) accelerator pedal position sensor
• (on front of engine) mass air flow sensor
• (right side of dash) joint connector b122
• (right side of dash) joint connector b83
• (right side of dash) test mode connector
• (under left side of dash) data link connector
• B52
• B75
• B76
• Drain valve
• Egr solenoid valve (left rear of engine)
• Electronic throttle control
• Engine coolant temperature sensor (right rear of engine)
• Fuse & relay box (f/b) (left end of dash)
• Fuse 15a
• Hot in on or start
• Manifold absolute pressure sensor (right rear of engine)
• Nca
• Pnk
• Pressure control solenoid valve (center rear of fuel tank)
• Red

2.5L, Engine Performance Wiring Diagram (4 of 4) for Subaru Legacy Limited 2007

List of elements for 2.5L, Engine Performance Wiring Diagram (4 of 4) for Subaru Legacy Limited 2007:

• (center of dash) ge
• (on clutch pedal bracket)
• (top left of cylinder head) fuel injector 2 & 4
• (top right of cylinder head) fuel injector 1 & 3
• A/t
• Air conditioning system
• Anti-theft system
• B135
• B136
• B186
• Camshaft position sensor (left front side of engine)
• Clutch switch
• Computer data lines system
• Cooling fans system
• Crankshaft position sensor (on front of engine)
• Cruise control system
• Engine control module (behind right side of dash)
• Fuse 7.5a
• Ge (center of dash)
• Hot at all times
• Joint connector b138 (behind right kick panel)
• Knock sensor (on top left of engine)
• M/t
• Main fuse box (m/b) (left side of engine compt)
• Nca
• Pnk
• Red
• Starting/ charging system
• Starting/charging system

2.5L TURBO

2.5L Turbo, Engine Performance Wiring Diagram (1 of 5) for Subaru Legacy Limited 2007

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (1 of 5) for Subaru Legacy Limited 2007:

• (on top left of engine) ge-1
• (on transmission) neutral position switch
• (right side of dash) joint connector b122
• (right side of dash) test mode connector b75
• 5m/t
• 6m/t
• Accelerator pedal position sensor (left center of dash)
• Air conditioning system
• Anti-theft system
• B135
• B136
• B52
• B55
• B76
• Computer data lines system
• Cooling fans system
• Cruise control system
• Data link connector
• Electronic throttle control relay
• Engine control module (behind right side of dash)
• Fuel tank pressure sensor (behind rear bumper)
• Fuse & relay box (f/b) (left end of dash)
• Fuse 15a
• Hot in on or start
• Joint connector b83 (right side of dash)
• M/t
• Mass air flow sensor
• Nca
• Pnk
• Red
• Starting/ charging system
• Starting/charging system
• Tcm (a/t) (left side of dash)

2.5L Turbo, Engine Performance Wiring Diagram (2 of 5) for Subaru Legacy Limited 2007

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (2 of 5) for Subaru Legacy Limited 2007:

• (center rear of fuel tank) pressure control solenoid valve
• (right kick panel) main relay
• (sedan: at top center of trunk) (wagon: left "d" pillar)
• B145
• B186
• Combination meter
• Drain valve
• Drive circuit
• Engine coolant temp gauge
• Fuel pump assembly (in fuel tank)
• Fuel pump control unit (sedan: left side of trunk) (wagon: left side of luggage compt)
• Fuel pump relay
• Fuel temp sensor
• Fuse 15a
• Fuse 7.5a
• Fuse sbf-5 30a
• Fuse sbf-7 30a
• Gb-3
• Gb-5 (right side of dash)
• Gb-9
• Ground joint connector i98
• Hot at all times
• I/f
• I10
• I11
• M/t
• Main fuse box (m/b) (left side of engine compt)
• Malfunction ind light
• Micro computer
• Nca
• Oil pressure warning ind
• One step dimmer circuit
• Pnk
• Power circuit
• Red
• Si-drive selector (console)
• Speedo- meter
• Tacho- meter
• Temp ind engine coolant
• Up ind shift

2.5L Turbo, Engine Performance Wiring Diagram (3 of 5) for Subaru Legacy Limited 2007

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (3 of 5) for Subaru Legacy Limited 2007:

• (left rear of engine compt) secondary air combination valve relay 1
• (left rear of engine compt) secondary air combination valve relay 2
• (left rear of engine compt) secondary air pump relay
• (on top left of engine) ge-1
• B143
• B144
• B52
• F37
• Front oxygen (a/f) sensor (top of engine)
• Fuse & relay box (f/b) (left end of dash)
• Fuse 10a
• Fuse 15a
• Fuse 60a
• Hot at all times
• Hot in on or start
• Joint connector b138 (behind right kick panel)
• Left secondary air combination valve (left side of engine compt)
• Main fuse box (m/b) (left side of engine compt)
• Nca
• Oil pressure switch (upper front center of engine)
• Purge control solenoid valve 2 (right rear of engine compt)
• R168
• Rear oxygen sensor (left rear of transmission)
• Red
• Relay holder (left side of engine compt)
• Secondary air pump (left side of engine compt)
• Wastegate control solenoid (right rear of engine)

2.5L Turbo, Engine Performance Wiring Diagram (4 of 5) for Subaru Legacy Limited 2007

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (4 of 5) for Subaru Legacy Limited 2007:

• (front of left cylinder head) left intake oil flow control solenoid valve
• (front of right cylinder head) right intake oil flow control solenoid valve
• (left side of engine) ignition coil 2
• (left side of engine) ignition coil 4
• (right side of engine) ignition coil 1
• (right side of engine) ignition coil 3
• Crankshaft position sensor (on front of engine)
• Ge-1 (on top left of engine)
• Knock sensor (on top rear of engine)
• Leak diagnosis connector
• Left camshaft position sensor (rear of left cylinder head)
• Manifold absolute pressure sensor (right rear of engine)
• Nca
• Purge control solenoid valve 1 (on front of engine)
• Red
• Right camshaft position sensor (rear of right cylinder head)

2.5L Turbo, Engine Performance Wiring Diagram (5 of 5) for Subaru Legacy Limited 2007

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (5 of 5) for Subaru Legacy Limited 2007:

• (on top left of engine) ge-1
• (top left of cylinder head) fuel injector 2
• (top left of cylinder head) fuel injector 4
• (top right of cylinder head) fuel injector 1
• (top right of cylinder head) fuel injector 3
• B134
• B137
• Electronic throttle control (right rear of engine)
• Engine control module (behind right side of dash)
• Engine coolant temperature sensor & thermometer (top front of engine)
• Ge-1 (on top left of engine)
• Left tgv (left rear of engine)
• Nca
• Pnk
• Power steering oil pressure switch (on power steering oil pump)
• Red
• Right secondary air combination valve
• Right tgv (right rear of engine)