ENGINE PERFORMANCE – Volkswagen Golf GL 2002 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

1.9L

1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Early Production (1 of 3) for Volkswagen Golf GL 2002

List of elements for 1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Early Production (1 of 3) for Volkswagen Golf GL 2002:

• (not used)
• (w/a/t)
• (w/m/t)
• 32a
• 34a
• 43a
• A/c system
• Cooling fans system
• Cruise control system
• Diesel direct fuel injection (dfi) engine control module (ecm) (at base of windshield, in center of plenum)
• Egr vacuum regulator solenoid valve (on center of firewall)
• Fuse 10a
• Fuse 110a
• Fuse 30a
• Fuse bracket
• Fuse panel
• G608 (center of firewall)
• Generator
• Hot at all times
• Hot in run or start
• Manifold absolute pressure (map) sensor & intake air temperature (iat) sensor (in air intake duct)
• Mass airflow (maf) sensor (right side of air cleaner housing)
• Red
• Relay panel
• Throttle position (tp) sensor/ closed throttle position (ctp) switch/kickdown switch (above accelerator pedal)
• Transmissions system

1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Early Production (2 of 3) for Volkswagen Golf GL 2002

List of elements for 1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Early Production (2 of 3) for Volkswagen Golf GL 2002:

• 13a
• Brakelight switch/ brake vacuum vent valve switch (above brake pedal)
• Clutch vacuum vent valve switch (w/m/t) (above clutch pedal)
• Coolant glow plugs (m/t only)
• Coolant preheating relay (high heat output) (w/m/t) (left rear corner of engine compartment)
• Coolant preheating relay (low heat output) (w/m/t) (left rear corner of engine compartment)
• Engine glow plugs
• Fuse 10a
• Fuse 50a
• Fuse bracket
• Fuse panel
• G42 (beside steering column)
• G608 (center of firewall)
• Glow plug relay (on thirteen- fold auxiliary relay panel)
• Hot at all times
• Intake manifold flap changeover valve (on intake manifold)
• Positive crankcase ventilation (pcv) heating element (between cylinder head cover & intake air duct, in pcv hose)
• Red

1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Early Production (3 of 3) for Volkswagen Golf GL 2002

List of elements for 1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Early Production (3 of 3) for Volkswagen Golf GL 2002:

• (under left side of dash) data link connector (dlc)
• (w/m/t)
• 10a
• Abs system
• Cold start injector (at left side of engine, on bottom of diesel direct fuel injection pump)
• Data bus onboard diagnostic interface
• Diesel direct fuel injection (dfi) engine control module (ecm) (at base of windshield, in center of plenum)
• Engine coolant temperature (ect) sensor (on cylinder head)
• Engine speed (rpm) sensor (left side of engine block)
• Fuel cut- off valve (at left side of engine, on top of diesel direct fuel injection pump)
• Fuel temperature sensor/modulating piston displacement sensor/quantity adjuster (at left side of engine, on front of diesel dfi pump)
• Fuse 5a
• Fuse panel
• Glow plug ind
• Hot in run
• Instrument cluster
• Malfunction indicator lamp (mil)
• Nca
• Needle lift sensor (left side of cylinder head)
• T32
• T32a
• Transmissions system (w/a/t)
• Wastegate bypass regulator valve (left rear side of engine compt)

1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Late Production (1 of 3) for Volkswagen Golf GL 2002

List of elements for 1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Late Production (1 of 3) for Volkswagen Golf GL 2002:

• (not used)
• (w/a/t)
• (w/m/t)
• 32a
• 34a
• 43a
• A/c system
• Cooling fans system
• Cruise control system
• Diesel direct fuel injection (dfi) engine control module (ecm) (at base of windshield, in center of plenum)
• Egr vacuum regulator solenoid valve (on center of firewall)
• Fuse 10a
• Fuse 110a
• Fuse 30a
• Fuse bracket
• Fuse panel
• G608 (center of firewall)
• Generator
• Hot at all times
• Hot in run or start
• Manifold absolute pressure (map) sensor & intake air temperature (iat) sensor (in air intake duct)
• Mass airflow (maf) sensor (right side of air cleaner housing)
• Red
• Relay panel
• Throttle position (tp) sensor/ closed throttle position (ctp) switch/kickdown switch (above accelerator pedal)
• Transmissions system

1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Late Production (2 of 3) for Volkswagen Golf GL 2002

List of elements for 1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Late Production (2 of 3) for Volkswagen Golf GL 2002:

• 13a
• Brakelight switch/ brake vacuum vent valve switch (above brake pedal)
• Clutch vacuum vent valve switch (w/m/t) (above clutch pedal)
• Coolant glow plugs (m/t only)
• Coolant preheating relay (high heat output) (w/m/t) (left rear corner of engine compartment)
• Coolant preheating relay (low heat output) (w/m/t) (left rear corner of engine compartment)
• Engine glow plugs
• Fuse 10a
• Fuse 50a
• Fuse bracket
• Fuse panel
• G608 (center of firewall)
• Glow plug trigger control module
• Hot at all times
• Intake manifold flap changeover valve (on intake manifold)
• Positive crankcase ventilation (pcv) heating element (between cylinder head cover & intake air duct, in pcv hose)
• Red

1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Late Production (3 of 3) for Volkswagen Golf GL 2002

List of elements for 1.9L Turbo Diesel, Engine Performance Wiring Diagrams, Late Production (3 of 3) for Volkswagen Golf GL 2002:

• (not used)
• (under left side of dash) data link connector (dlc)
• (w/m/t)
• 10a
• Abs system
• Cold start injector (at left side of engine, on bottom of diesel direct fuel injection pump)
• Data bus onboard diagnostic interface
• Diesel direct fuel injection (dfi) engine control module (ecm) (at base of windshield, in center of plenum)
• Engine coolant temperature (ect) sensor (on cylinder head)
• Engine speed (rpm) sensor (left side of engine block)
• Fuel cut- off valve (at left side of engine, on top of diesel direct fuel injection pump)
• Fuel temperature sensor/modulating piston displacement sensor/quantity adjuster (at left side of engine, on front of diesel dfi pump)
• Fuse 5a
• Fuse panel
• Glow plug ind
• Hot in run
• Instrument cluster
• Malfunction indicator lamp (mil)
• Nca
• Needle lift sensor (left side of cylinder head)
• T32
• T32a
• Transmissions system (w/a/t)
• Wastegate bypass regulator valve (left rear side of engine compt)

2.0L

2.0L, Engine Performance Wiring Diagrams (1 of 3) for Volkswagen Golf GL 2002

List of elements for 2.0L, Engine Performance Wiring Diagrams (1 of 3) for Volkswagen Golf GL 2002:

• (center of firewall) g608
• (not used)
• (pins 10-20 not used)
• (pins 22-24 not used)
• (pins 6-8 not used)
• 10a
• 29a
• A/c system
• Computer data lines system
• Cruise control system
• Early production
• Evaporative emission canister purge regulator valve (next to engine coolant reservoir)
• Fuel pump relay
• Fuse 15a
• Fuse 50a
• Fuse panel
• Fuse/ red bracket battery
• G42 (beside steering column)
• Heated oxygen sensor (ho2s) (ahead of three- way catalytic converter)
• Hot at all times
• Hot in run or start
• Ignition switch
• Leak detection pump (in right rear wheelhouse)
• Lock
• Mass airflow (maf) sensor & intake air temperature (iat) sensor (in intake air duct)
• Motronic engine control module (at base of windshield, in center of plenum)
• Nca
• Oxygen sensor (o2s) (back of three- way catalytic converter)
• Red
• Relay panel
• Run
• Start
• Starting/ charging system
• Throttle position sensor/ accel pedal position sensor

2.0L, Engine Performance Wiring Diagrams (2 of 3) for Volkswagen Golf GL 2002

List of elements for 2.0L, Engine Performance Wiring Diagrams (2 of 3) for Volkswagen Golf GL 2002:

• (beside steering column)
• (right side of firewall) g609
• 28a
• 34a
• Engine speed (rpm) sensor (on left side of engine block)
• Fuel pump (in fuel tank)
• Fuse 10a
• Fuse 15a
• Fuse 50a
• Fuse panel
• Fuse/ bracket battery
• G42
• Hot at all times
• Instument cluster
• Knock sensor 1 (on left front side of engine block)
• Knock sensor 2 (behind ignition coil)
• Malfunction indicator lamp
• Nca
• Positive crankcase ventilation (pvc) heating element (between cylinder head cover & intake air duct)
• Red
• Secondary air injection pump motor (on left rear side of engine)
• Secondary air injection pump relay (in left side of engine compt)
• T32
• T32a

2.0L, Engine Performance Wiring Diagrams (3 of 3) for Volkswagen Golf GL 2002

List of elements for 2.0L, Engine Performance Wiring Diagrams (3 of 3) for Volkswagen Golf GL 2002:

• (on cylinder head) engine coolant temperature sensor
• (on lower left rear of engine) ignition coil
• 13a
• Brake- light switch (above brake pedal)
• Camshaft position sensor (behind camshaft sprocket)
• Clutch vacuum vent valve switch (above clutch pedal)
• Cruise control system
• Fuel injectors
• Fuse 10a
• Fuse 7.5a
• Fuse panel (behind left side of dash)
• G608 (center of firewall)
• Hot at all times
• Motronic engine control module (at base of windshield, in center of plenum)
• Nca
• Not used
• Throttle valve control module (on throttle body)
• To spark plug