ENGINE PERFORMANCE – Volkswagen Jetta S 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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