ENGINE PERFORMANCE – Porsche Boxster 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.7L

2.7L, Engine Performance Wiring Diagram (1 of 3) for Porsche Boxster 2003

List of elements for 2.7L, Engine Performance Wiring Diagram (1 of 3) for Porsche Boxster 2003:

• "w" lead
• +5v
• A/c system
• Anti-theft system (alarm system control unit)
• Before cat heat o2s1
• Before cat heat o2s2
• Before cat o2s 1 gnd
• Before cat o2s 1 sig
• Before cat o2s 2 gnd
• Before cat o2s 2 sig
• Behind cat heat o2s1
• Behind cat heat o2s2
• Behind cat o2s 1 gnd
• Behind cat o2s 1 sig
• Behind cat o2s 2 gnd
• Behind cat o2s 2 sig
• Camshaft sensor 1
• Camshaft sensor 2
• Can tiptronic high
• Can tiptronic low
• Electronics gnd
• Eng compt temp sen
• Eng speed sens shd
• Final stage gnd
• Fuel injectors
• Fuse c1 25a
• Fuse c2 30a
• Fuse holder c (integral to fuse support, at left kick panel)
• Gp8 (left side of engine compt)
• Gp9 (on trans- mission)
• Hfm +5v
• Hfm gnd
• Hfm signal
• Hot at all times
• Ignition/oxygen sensor relay (on relay support 2)
• Inj valve/cylinder 3
• Inj valve/cylinder 4
• Inj valve/cylinder 5
• Inj valve/cylinder 6
• Injectors gnd
• Intake pipe chg-over
• Intake temp sensor
• Mass airflow sensor (on fresh air intake, near air filter)
• Mfi+di relay
• Mfi-di control unit (left side of rear luggage compt)
• Mfi-di relay (on relay support 2)
• Nca
• Ntc coolant temp
• Ntc gnd
• Oxygen sensor (cyl 1-3) (downstream of catalytic conv)
• Oxygen sensor (cyl 1-3) (upstream of catalytic conv)
• Oxygen sensor (cyl 4-6) (downstream of catalytic conv)
• Oxygen sensor (cyl 4-6) (upstream of catalytic conv)
• P/n release
• Second air pump rly
• Second air pump valve
• Secondary air pump relay (on relay support 2)
• Sensors gnd
• Starting/ charging system
• Tank venting valve
• Temp motor oil
• Term. 15
• Term. 30
• Throttle valve gnd
• Throttle valve sig
• Throttle vlv mtr (+)
• Throttle vlv mtr (-)
• Trans- missions system
• Trans- missions system (tiptronic control unit)

2.7L, Engine Performance Wiring Diagram (2 of 3) for Porsche Boxster 2003

List of elements for 2.7L, Engine Performance Wiring Diagram (2 of 3) for Porsche Boxster 2003:

• (below left side of dash) diagnosis connector
• Camshaft adjustment
• Camshaft sensor 1 (on rear of right cyl head)
• Camshaft sensor 2 (on front of left cyl head)
• Clutch interlock switch
• Engine coolant temperature sensor (on left front of engine)
• Engine speed sensor (on rear of engine, right of crankshaft)
• Engine temperature sensor (on right side of engine)
• Filler neck valve switch
• Fresh air valve
• Fuel tank venting valve (near throttle body)
• Fuse b7 15a
• Fuse b8 15a
• Fuse e6 7.5a
• Fuse holder b (integral to fuse support, at left kick panel)
• Fuse holder e (integral to fuse support, at left kick panel)
• Gp12 (rear of engine)
• Gp3-1 (left side of dash)
• Hot at all times
• Hot in run or start
• Intake pipe change- over valve
• J/c bs14/2
• J/c bs16/1
• J/c bs6/2
• Maxi fuse 40a
• Nca
• Oil temperature & oil level sensor (on top left of engine, under intake manifold)
• Orvr valve
• Relay support 2 (on left side of rear luggage compt)
• Secondary air pump motor (at right side of engine compt)
• Secondary air valve
• Stoplight switch (on brake pedal, below floor panel)
• Throttle valve (on throttle valve assembly)

2.7L, Engine Performance Wiring Diagram (3 of 3) for Porsche Boxster 2003

List of elements for 2.7L, Engine Performance Wiring Diagram (3 of 3) for Porsche Boxster 2003:

• (behind accelerator pedal) pedal value sensor
• (in fuel tank) fuel pump
• (on relay support 1) fuel pump relay
• (on top of left cyl head) knock sensor 2
• (on top of right cyl head) knock sensor 1
• +5v pdl value sens 1
• +5v pdl value sens 2
• A/c rly
• A/c system
• Aav valve
• Abs system
• Automatic exhaust gas recirculation examination connector
• Camshaft adj 1
• Camshaft adj 2
• Can high
• Can low
• Clutch release
• Cooling fans system
• Cooling water valve
• Crash shut-down
• Diag
• Differential pressure
• Differential pressure sensor
• Dim status
• Eng compt blwr rly
• Eng speed sensor
• Eso rear
• Fan stage 1
• Fan stage 2
• Fuel pump relay ctrl
• Fuse b8 15a
• Fuse c4 30a
• Fuse holder c (integral to fuse support)
• G3 (left side of dash)
• Gp11 (left side of engine)
• Gp12 (rear of engine)
• Gp8 (left side of engine compt)
• Gp9 (on trans- mission)
• Hot at all times
• Hot in on or start
• Ign coil 1
• Ign coil 2
• Ign coil 3
• Ign coil 4
• Ign coil 5
• Ign coil 6
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition gnd
• Inj valve/cylinder 1
• Inj valve/cylinder 2
• Instrument cluster system
• Knock sens 1
• Knock sens 2
• Mean pressure sw
• Mfi+di relay ctrl
• Mfi-di control unit (left side of rear luggage compt)
• Nca
• Pdl value sens 1 gnd
• Pdl value sens 1 sig
• Pdl value sens 2 gnd
• Pdl value sens 2 sig
• Plug spark
• Release
• Sensor gnd
• Spark plug
• Starting/charging system
• Stoplight sw 1
• Tiptr variant coding
• Tn-signal

3.2L

3.2L, Engine Performance Wiring Diagram (1 of 3) for Porsche Boxster 2003

List of elements for 3.2L, Engine Performance Wiring Diagram (1 of 3) for Porsche Boxster 2003:

• "w" lead
• +5v
• A/c system
• Anti-theft system (alarm system control unit)
• Before cat heat o2s1
• Before cat heat o2s2
• Before cat o2s 1 gnd
• Before cat o2s 1 sig
• Before cat o2s 2 gnd
• Before cat o2s 2 sig
• Behind cat heat o2s1
• Behind cat heat o2s2
• Behind cat o2s 1 gnd
• Behind cat o2s 1 sig
• Behind cat o2s 2 gnd
• Behind cat o2s 2 sig
• Camshaft sensor 1
• Camshaft sensor 2
• Can tiptronic high
• Can tiptronic low
• Electronics gnd
• Eng compt temp sen
• Eng speed sens shd
• Final stage gnd
• Fuel injectors
• Fuse c1 25a
• Fuse c2 30a
• Fuse holder c (integral to fuse support, at left kick panel)
• Gp8 (left side of engine compt)
• Gp9 (on trans- mission)
• Hfm +5v
• Hfm gnd
• Hfm signal
• Hot at all times
• Ignition/oxygen sensor relay (on relay support 2)
• Inj valve/cylinder 3
• Inj valve/cylinder 4
• Inj valve/cylinder 5
• Inj valve/cylinder 6
• Injectors gnd
• Intake pipe chg-over
• Intake temp sensor
• Mass airflow sensor (on fresh air intake, near air filter)
• Mfi+di relay
• Mfi-di control unit (left side of rear luggage compt)
• Mfi-di relay (on relay support 2)
• Nca
• Ntc coolant temp
• Ntc gnd
• Oxygen sensor (cyl 1-3) (downstream of catalytic conv)
• Oxygen sensor (cyl 1-3) (upstream of catalytic conv)
• Oxygen sensor (cyl 4-6) (downstream of catalytic conv)
• Oxygen sensor (cyl 4-6) (upstream of catalytic conv)
• P/n release
• Second air pump rly
• Second air pump valve
• Secondary air pump relay (on relay support 2)
• Sensors gnd
• Starting/ charging system
• Tank venting valve
• Temp motor oil
• Term. 15
• Term. 30
• Throttle valve gnd
• Throttle valve sig
• Throttle vlv mtr (+)
• Throttle vlv mtr (-)
• Trans- missions system
• Trans- missions system (tiptronic control unit)

3.2L, Engine Performance Wiring Diagram (2 of 3) for Porsche Boxster 2003

List of elements for 3.2L, Engine Performance Wiring Diagram (2 of 3) for Porsche Boxster 2003:

• (below left side of dash) diagnosis connector
• Camshaft adjustment
• Camshaft sensor 1 (on rear of right cyl head)
• Camshaft sensor 2 (on front of left cyl head)
• Clutch interlock switch
• Engine coolant temperature sensor (on left front of engine)
• Engine speed sensor (on rear of engine, right of crankshaft)
• Engine temperature sensor (on right side of engine)
• Filler neck valve switch
• Fresh air valve
• Fuel tank venting valve (near throttle body)
• Fuse b7 15a
• Fuse b8 15a
• Fuse e6 7.5a
• Fuse holder b (integral to fuse support, at left kick panel)
• Fuse holder e (integral to fuse support, at left kick panel)
• Gp12 (rear of engine)
• Gp3-1 (left side of dash)
• Hot at all times
• Hot in run or start
• Intake pipe change- over valve
• J/c bs14/2
• J/c bs16/1
• J/c bs6/2
• Maxi fuse 40a
• Nca
• Oil temperature & oil level sensor (on top left of engine, under intake manifold)
• Orvr valve
• Relay support 2 (on left side of rear luggage compt)
• Secondary air pump motor (at right side of engine compt)
• Secondary air valve
• Stoplight switch (on brake pedal, below floor panel)
• Throttle valve (on throttle valve assembly)

3.2L, Engine Performance Wiring Diagram (3 of 3) for Porsche Boxster 2003

List of elements for 3.2L, Engine Performance Wiring Diagram (3 of 3) for Porsche Boxster 2003:

• (behind accelerator pedal) pedal value sensor
• (in fuel tank) fuel pump
• (on relay support 1) fuel pump relay
• (on top of left cyl head) knock sensor 2
• (on top of right cyl head) knock sensor 1
• +5v pdl value sens 1
• +5v pdl value sens 2
• A/c rly
• A/c system
• Aav valve
• Abs system
• Automatic exhaust gas recirculation examination connector
• Camshaft adj 1
• Camshaft adj 2
• Can high
• Can low
• Clutch release
• Cooling fans system
• Cooling water valve
• Crash shut-down
• Diag
• Differential pressure
• Differential pressure sensor
• Dim status
• Eng compt blwr rly
• Eng speed sensor
• Eso rear
• Fan stage 1
• Fan stage 2
• Fuel pump relay ctrl
• Fuse b8 15a
• Fuse c4 30a
• Fuse holder c (integral to fuse support)
• G3 (left side of dash)
• Gp11 (left side of engine)
• Gp12 (rear of engine)
• Gp8 (left side of engine compt)
• Gp9 (on trans- mission)
• Hot at all times
• Hot in on or start
• Ign coil 1
• Ign coil 2
• Ign coil 3
• Ign coil 4
• Ign coil 5
• Ign coil 6
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition gnd
• Inj valve/cylinder 1
• Inj valve/cylinder 2
• Instrument cluster system
• Knock sens 1
• Knock sens 2
• Mean pressure sw
• Mfi+di relay ctrl
• Mfi-di control unit (left side of rear luggage compt)
• Nca
• Pdl value sens 1 gnd
• Pdl value sens 1 sig
• Pdl value sens 2 gnd
• Pdl value sens 2 sig
• Plug spark
• Release
• Sensor gnd
• Spark plug
• Starting/charging system
• Stoplight sw 1
• Tiptr variant coding
• Tn-signal