ENGINE PERFORMANCE – Volkswagen Jetta SEL 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L

2.0L, Engine Performance Wiring Diagram, BPY (1 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, BPY (1 of 5) for Volkswagen Jetta SEL 2008:

• (in plenum, by left front strut tower)
• 10a
• 20a
• 25a
• Abs control module (right rear corner of engine compt)
• Brake light switch
• Clutch position sensor (m/t)
• Coolant circulation pump relay
• Engine coolant temperature sensor (radiator) (lower left corner of radiator)
• Fuse
• Fuse 10a
• Fuse panel b
• G43 (behind right kick panel)
• G607
• G607 (in plenum, by left front strut tower)
• Hot at all times
• Leak detection pump (in right rear wheelwell, near fuel filler door)
• Motronic engine control module (at base of windshield, in center of plenum)
• Recirculation pump
• Red
• Steering column electronic systems control module
• T20d
• T26
• T40
• T47
• T94

2.0L, Engine Performance Wiring Diagram, BPY (2 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, BPY (2 of 5) for Volkswagen Jetta SEL 2008:

• 10a
• 15a
• Charge air pressure sensor
• Coolant fan control module
• Fuse
• Fuse panel b
• G43 (behind right kick panel)
• G607 (in plenum, by left front strut tower)
• G642 (left side of engine compt)
• Heated oxygen sensor (at exhaust manifold junction)
• Hot at all times
• Mass air flow sensor (in intake air duct)
• Nca
• Oxygen sensor behind three way catalytic converter (downstream of catalytic converter)
• Red
• Starter
• T26
• T40
• Vehicle electrical system control module

2.0L, Engine Performance Wiring Diagram, BPY (3 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, BPY (3 of 5) for Volkswagen Jetta SEL 2008:

• (above & right of relay panel) fuel pump control module
• (at base of windshield, in center of plenum)
• (right side of luggage compt)
• Computer
• Control module
• Data bus on board diagnostic diagnostic (above accelerator pedal)
• Data lines
• Data link connector
• Electronic power control warning lamp
• Engine coolant level/ temperature warning lamp
• Engine coolant temperature gauge
• Fuel gauge
• G642 (left side of engine compt)
• G675
• Instrument cluster
• Instrument cluster system
• Low fuel fuel warning lamp
• Malfunction ind lamp
• Motronic engine control module
• Oil pressure switch (on oil pump housing)
• Oil pressure warning lamp
• Red
• Speedometer
• Starting/ charging
• System
• T10v
• T94
• Tachometer
• Transfer fuel pump/ fuel level sensor

2.0L, Engine Performance Wiring Diagram, BPY (4 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, BPY (4 of 5) for Volkswagen Jetta SEL 2008:

• (rear of
• (top front of intake manifold) evaporative emission (evap) canister purge regulator valve
• 27a
• Accelerator pedal position sensor 2/throttle position sensor
• Camshaft position (cmp) sensor (left side of engine)
• Cylinder head) camshaft adjustment valve 1
• Engine coolant temperature sensor (rear of left cylinder head)
• Fuel pressure
• Fuse 10a
• Fuse 15a
• Fuse panel c
• Hot at all times
• Intake air temperature sensor (integral to mass airflow sensor)
• Intake manifold runner
• Position sensor/ intake flap motor
• Red
• Sensor
• Throttle valve control module
• Turbocharger recirculating valve
• Wastegate bypass regulator valve

2.0L, Engine Performance Wiring Diagram, BPY (5 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, BPY (5 of 5) for Volkswagen Jetta SEL 2008:

• (at base of windshield, in center of plenum) motronic engine control module
• (on top of cylinder head) g15
• (on top of engine)
• (top left side
• (top left side of engine)
• 50a
• All times
• Cylinder 1 fuel injector
• Cylinder 2
• Cylinder 3
• Cylinder 4
• Engine speed (rpm) sensor (left rear of engine)
• Fuel injector
• Fuel pressure
• Fuse
• G642 (left side of engine compt)
• Hot at
• Ignition coil 1 w/ power output stage (on top of engine)
• Ignition coil 2 w/ power output stage (on top of engine)
• Ignition coil 3 w/ power output stage (on top of engine)
• Ignition coil 4 w/ power output stage
• Knock sensor (ks) 1 (on lower right side of engine, below exhaust manifold)
• Knock sensor (ks) 2 (on lower right side of engine, below exhaust manifold)
• Low fuel pressure
• Nca
• Of engine)
• Panel
• Red
• Regulator
• Sensor
• T60
• To spark plug
• Valve

2.0L, Engine Performance Wiring Diagram, CBFA (1 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CBFA (1 of 6) for Volkswagen Jetta SEL 2008:

• (in plenum, by left front strut tower) g607
• Cooling fans system
• Cruise control system
• Engine coolant temperature (ect) sensor (w/ radiator) (lower left corner of radiator)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse panel b
• Hot at all times
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• Oxygen sensor bank 1 (in center three way catalytic convertor)
• Oxygen sensor behind three way catalytic converter (downstream of catalytic converter)
• Power distribution system
• Radiator identification sensor
• Red
• Starting/charging system
• T40
• T94

2.0L, Engine Performance Wiring Diagram, CBFA (2 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CBFA (2 of 6) for Volkswagen Jetta SEL 2008:

• (in plenum, by left front strut tower) g607
• (right rear corner of engine compt) abs control module
• Brake light switch
• Clutch position sensor
• Coolant circulation pump relay
• G602
• Heated oxygen sensor (at exhaust manifold junction)
• Leak detection pump (ldp) (in right rear wheelwell, near fuel filler door)
• Nca
• Power distribution system
• Recirculation pump
• Red
• T47
• Throttle position (tp) sensor & accelerator pedal position sensor 2
• Vehicle electrical system control module

2.0L, Engine Performance Wiring Diagram, CBFA (3 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CBFA (3 of 6) for Volkswagen Jetta SEL 2008:

• (above & right of relay panel) fuel pump (fp) control module
• Fuel level sensor & transfer fuel pump
• Fuse 40a
• Fuse panel b
• G15 (on top of cylinder head)
• G642 (left side of engine compt)
• G78
• Hot at all times
• Ignition coils w/ power output stage (on top of engine)
• Instrument cluster system
• Nca
• Red
• Secondary air injection (air) pump relay
• T40
• To spark plug

2.0L, Engine Performance Wiring Diagram, CBFA (4 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CBFA (4 of 6) for Volkswagen Jetta SEL 2008:

• 27a
• Camshaft position (cmp) sensor (left side of engine)
• Computer data lines system
• Engine coolant level/temp warning
• Engine coolant temp gauge
• Engine coolant temperature (ect) sensor (rear of left cylinder head)
• Engine electronics ind
• Fuel gauge
• Fuel pressure sensor
• Fuse 10a
• Fuse 15a
• Fuse panel c
• Hot at all times
• Instrument cluster control module
• Knock sensor (ks) 1 (on lower right side of engine, below exhaust manifold)
• Mil ind
• Nca
• Oil pressure switch (on oil pump housing)
• Oil pressure warning
• Secondary air injection sensor 1

2.0L, Engine Performance Wiring Diagram, CBFA (5 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CBFA (5 of 6) for Volkswagen Jetta SEL 2008:

• (in intake air duct) mass air flow (maf) sensor
• (left rear of engine) engine speed (rpm) sensor
• Fuel injectors (top left side of engine)
• Fuse 10a
• Fuse panel c
• Hot at all times
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• T60
• Throttle valve control module

2.0L, Engine Performance Wiring Diagram, CBFA (6 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CBFA (6 of 6) for Volkswagen Jetta SEL 2008:

• (integral to mass airflow sensor) intake air temp- erature (iat) sensor
• Camshaft adjustment valve 1 (rear of cylinder head)
• Charge air pressure sensor
• Computer data lines system
• Evaporative emission canister purge regulator valve (top front of intake manifold)
• Fuel pressure regulator valve
• Fuse 5a
• Fuse panel b
• G655 (below left headlight assembly)
• Hot at all times
• Intake manifold runner position sensor
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• Secondary air injection (air) pump motor (on lower left side of engine)
• Secondary air injection (air) solenoid valve (left of exhaust manifold)
• T40
• T60
• T94
• Turbocharger recalculating valve
• Wastegate bypass regulator valve
• Wastegate bypass regulator valve 2

2.0L, Engine Performance Wiring Diagram, CCTA (1 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CCTA (1 of 6) for Volkswagen Jetta SEL 2008:

• (in plenum, by left front strut tower) g607
• Cruise control system
• Engine coolant temperature (ect) sensor (w/ radiator) (lower left corner of radiator)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse panel b
• Hot at all times
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• Oxygen sensor bank 1 (in center three way catalytic convertor)
• Power distribution system
• Red
• Starting/charging system
• T40
• T94

2.0L, Engine Performance Wiring Diagram, CCTA (2 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CCTA (2 of 6) for Volkswagen Jetta SEL 2008:

• (right rear corner of engine compt) abs control module
• Brake light switch
• Clutch position sensor
• Coolant circulation pump relay
• G602
• Leak detection pump (ldp) (in right rear wheelwell, near fuel filler door)
• Oxygen sensor behind three way catalytic converter (downstream of catalytic converter)
• Red
• T47
• Throttle position (tp) sensor & accelerator pedal position sensor 2
• Vehicle electrical system control module

2.0L, Engine Performance Wiring Diagram, CCTA (3 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CCTA (3 of 6) for Volkswagen Jetta SEL 2008:

• (above & right of relay panel) fuel pump (fp) control module
• (in plenum, by left front strut tower) g607
• Fuel level sensor & transfer fuel pump
• G15 (on top of cylinder head)
• G642 (left side of engine compt)
• G78
• Ignition coils w/ power output stage (on top of engine)
• Instrument cluster system
• Nca
• Recirculation pump
• Red
• To spark plug

2.0L, Engine Performance Wiring Diagram, CCTA (4 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CCTA (4 of 6) for Volkswagen Jetta SEL 2008:

• 27a
• Camshaft position (cmp) sensor (left side of engine)
• Computer data lines system
• Engine coolant level/temp warning
• Engine coolant temp gauge
• Engine coolant temperature (ect) sensor (rear of left cylinder head)
• Engine electronics ind
• Fuel gauge
• Fuel pressure sensor
• Fuse 10a
• Fuse 15a
• Fuse panel c
• Hot at all times
• Instrument cluster control module
• Knock sensor (ks) 1 (on lower right side of engine, below exhaust manifold)
• Mil ind
• Nca
• Oil pressure switch (on oil pump housing)
• Oil pressure warning

2.0L, Engine Performance Wiring Diagram, CCTA (5 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CCTA (5 of 6) for Volkswagen Jetta SEL 2008:

• (in intake air duct) mass air flow (maf) sensor
• (left rear of engine) engine speed (rpm) sensor
• Fuel injectors (top left side of engine)
• Fuse 10a
• Fuse panel c
• Hot at all times
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• T60
• Throttle valve control module

2.0L, Engine Performance Wiring Diagram, CCTA (6 of 6) for Volkswagen Jetta SEL 2008

List of elements for 2.0L, Engine Performance Wiring Diagram, CCTA (6 of 6) for Volkswagen Jetta SEL 2008:

• (integral to mass airflow sensor) intake air temp- erature (iat) sensor
• Camshaft adjustment valve 1 (rear of cylinder head)
• Charge air pressure sensor
• Computer data lines system
• Evaporative emission canister purge regulator valve (top front of intake manifold)
• Fuse 5a
• Fuse panel b
• Hot at all times
• Intake manifold runner position sensor
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• T40
• T60
• T94
• Turbocharger recirculating valve
• Wastegate bypass regulator valve
• Wastegate bypass regulator valve 2

2.5L

2.5L, Engine Performance Wiring Diagram, Early Production (1 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Early Production (1 of 5) for Volkswagen Jetta SEL 2008:

• Clutch position sensor (m/t)
• Engine coolant temperature sensor (radiator) (lower left corner of radiator)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 25a
• Fuse 50a
• Fuse 5a
• Fuse panel b
• G602
• G607 (in plenum, by left front strut tower)
• G655 (below left headlight assembly)
• Hot at all times
• Intake air temperature sensor 2
• Leak detection pump (in right rear wheelwell, near fuel filler door)
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• Red
• Secondary air injection (air) pump motor (on lower left side of engine)
• Secondary air injection (air) pump relay
• Starting/charging system
• Steering column electronic systems control module
• T20d
• T40

2.5L, Engine Performance Wiring Diagram, Early Production (2 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Early Production (2 of 5) for Volkswagen Jetta SEL 2008:

• Fuse 10a
• Fuse 5a
• Fuse panel c
• Intake air temperature (iat) sensor/ mass air flow (maf) sensor (intake air temperature sensor: integral to mass airflow sensor mass air flow (maf) sensor: (in intake air duct)
• Oxygen sensor
• Oxygen sensor behind three way catalytic converter (cbua) (downstream of catalytic converter)
• Vehicle electrical system control module

2.5L, Engine Performance Wiring Diagram, Early Production (3 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Early Production (3 of 5) for Volkswagen Jetta SEL 2008:

• Computer data lines system
• Data bus on board diagnostic interface (above accelerator pedal)
• Data link connector
• Electronic power control warning lamp
• Engine coolant level/ temperature warning lamp
• Engine coolant temperature gauge
• Fuel primer relay
• Fuel pump relay
• G642 (left side of engine compt)
• G78
• Heated oxygen sensor (at exhaust manifold junction)
• Instrument cluster
• Instrument cluster control module
• Malfunction ind lamp
• Nca
• Oil pressure switch (on oil pump housing)
• Oil pressure warning lamp
• Secondary air injection (air) solenoid valve (left of exhaust manifold)
• Speedometer
• T16
• T20
• Tachometer
• Transfer fuel pump/ fuel level sensor

2.5L, Engine Performance Wiring Diagram, Early Production (4 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Early Production (4 of 5) for Volkswagen Jetta SEL 2008:

• (rear of cylinder head) camshaft adjustment valve 1
• (top front of intake manifold) evaporative emission (evap) canister purge regulator valve
• 27a
• Accelerator pedal position sensor 2/throttle position sensor
• Brake light switch/ brake pedal switch
• Camshaft position sensor (left side of engine)
• Engine coolant temperature sensor (rear of left cylinder head)
• Engine speed (rpm) sensor (left rear of engine)
• Fuse 15a
• Fuse panel c
• G602
• Hot at all times
• Knock sensor (ks) 1 (on lower right side of engine, below exhaust manifold)
• Knock sensor (ks) 2 (on lower right side of engine, below exhaust manifold)
• Manifold absolute pressure sensor (rear of intake manifold)
• Red
• Starter
• Throttle valve control module

2.5L, Engine Performance Wiring Diagram, Early Production (5 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Early Production (5 of 5) for Volkswagen Jetta SEL 2008:

• (top left side of engine) cylinder 1 fuel injector
• (top left side of engine) cylinder 2 fuel injector
• (top left side of engine) cylinder 3 fuel injector
• (top left side of engine) cylinder 4 fuel injector
• (top left side of engine) cylinder 5 fuel injector
• Cooling fans system
• G15 (on top of cylinder head)
• G642 (left side of engine compt)
• Ignition coil 1 w/ power output stage (on top of engine)
• Ignition coil 2 w/ power output stage (on top of engine)
• Ignition coil 3 w/ power output stage (on top of engine)
• Ignition coil 4 w/ power output stage (on top of engine)
• Ignition coil 5 w/ power output stage (on top of engine)
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• Nca
• Red
• To spark plug

2.5L, Engine Performance Wiring Diagram, Late Production (1 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Late Production (1 of 5) for Volkswagen Jetta SEL 2008:

• Brake light switch/ brake pedal switch
• Clutch position sensor
• Cooling fans system
• Engine coolant temperature sensor (radiator) (lower left corner of radiator)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 25a
• Fuse 50a
• Fuse 5a
• Fuse panel b
• G602
• G607 (in plenum, by left front strut tower)
• Hot at all times
• Leak detection pump (ldp) (in right rear wheelwell, near fuel filler door)
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• Secondary air injection (air) pump relay
• T40
• T94

2.5L, Engine Performance Wiring Diagram, Late Production (2 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Late Production (2 of 5) for Volkswagen Jetta SEL 2008:

• (right rear corner of engine compt) abs control module
• Fuse 5a
• Fuse panel c
• G655 (below left headlight assembly)
• Heated oxygen sensor (at exhaust manifold junction)
• Nca
• Oxygen sensor
• Oxygen sensor behind three way catalytic converter (cbua) (downstream of catalytic converter)
• Secondary air injection (air) pump motor (on lower left side of engine)
• Throttle position (tp) sensor & accelerator pedal position sensor 2
• Vehicle electrical system control module

2.5L, Engine Performance Wiring Diagram, Late Production (3 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Late Production (3 of 5) for Volkswagen Jetta SEL 2008:

• 27a
• Fuel primer relay
• Fuel pump relay
• Fuse 15a
• Fuse panel c
• G15 (on top of cylinder head)
• G602
• G642 (left side of engine compt)
• G78
• Hot at all times
• Ignition coil 1 w/ power output stage (on top of engine)
• Ignition coil 2 w/ power output stage (on top of engine)
• Ignition coil 3 w/ power output stage (on top of engine)
• Ignition coil 4 w/ power output stage (on top of engine)
• Ignition coil 5 w/ power output stage (on top of engine)
• Nca
• Red
• Secondary air injection (air) solenoid valve (left of exhaust manifold)
• Starter
• To spark plug
• Transfer fuel pump/ fuel level sensor

2.5L, Engine Performance Wiring Diagram, Late Production (4 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Late Production (4 of 5) for Volkswagen Jetta SEL 2008:

• (on oil pump housing) oil pressure switch
• (rear of cylinder head) camshaft adjustment valve 1
• (top front of intake manifold) evaporative emission (evap) canister purge regulator valve
• Computer data lines system
• Cooling fans system
• Electronic power control warning lamp
• Engine coolant level/ temperature warning lamp
• Engine coolant temperature (ect) sensor (rear of left cylinder head)
• Engine coolant temperature gauge
• Fuel gauge
• G642 (left side of engine compt)
• Instrument cluster control module
• Malfunction ind lamp
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• Oil pressure warning lamp
• Speedometer
• T60
• Tachometer
• Throttle valve control module

2.5L, Engine Performance Wiring Diagram, Late Production (5 of 5) for Volkswagen Jetta SEL 2008

List of elements for 2.5L, Engine Performance Wiring Diagram, Late Production (5 of 5) for Volkswagen Jetta SEL 2008:

• (top left side of engine) cylinder 1 fuel injector
• (top left side of engine) cylinder 2 fuel injector
• (top left side of engine) cylinder 3 fuel injector
• (top left side of engine) cylinder 4 fuel injector
• (top left side of engine) cylinder 5 fuel injector
• Camshaft position sensor (left side of engine)
• Computer data lines system
• Engine speed (rpm) sensor (left rear of engine)
• Knock sensor (ks) 1 (on lower right side of engine, below exhaust manifold)
• Knock sensor (ks) 2 (on lower right side of engine, below exhaust manifold)
• Manifold absolute pressure (map) sensor (rear of intake manifold)
• Motronic engine control module (ecm) (at base of windshield, in center of plenum)
• Red
• Secondary air injection sensor 1
• Starting/charging system
• Steering column electronic systems control 20d module
• T60
• T94