ENGINE PERFORMANCE – Volkswagen GTI GLS 1999 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L

2.0L, Engine Performance Wiring Diagrams (1 of 3) for Volkswagen GTI GLS 1999

List of elements for 2.0L, Engine Performance Wiring Diagrams (1 of 3) for Volkswagen GTI GLS 1999:

• (at right of air cleaner housing, in intake air duct)
• (on center of firewall)
• Air conditioning system
• Anti-lock brake system
• Evaporative emission (evap) canister purge regulator valve (next to engine coolant reservoir)
• Fuse 10a
• Fuse panel
• G121
• Heated oxygen sensor (ho2s) (ahead of 3-way catalytic converter)
• Hot at all times
• Instrument cluster
• Leak detection pump (in right rear wheelhousing)
• Malfunction indicator light (mil)
• Mass airflow (maf) sensor & intake air temperature (iat) sensor
• Motronic engine control module (ecm) (at base of windshield, in center plenum)
• Oxygen sensor (o2s) (at back of 3-way catalytic converter)
• Secondary air injection (air) solenoid valve (above brake fluid reservoir)
• T32
• T32a
• Transmission controls system

2.0L, Engine Performance Wiring Diagrams (2 of 3) for Volkswagen GTI GLS 1999

List of elements for 2.0L, Engine Performance Wiring Diagrams (2 of 3) for Volkswagen GTI GLS 1999:

• (center of firewall) g121
• (right side of firewall) g123
• Data link connector (dlc) (under left side of dash)
• Engine speed (rpm) sensor (left side of of engine)
• Fuel pump
• Fuel pump relay
• Fuse 15a
• Fuse 28 10a
• Fuse 32 10a
• Fuse 34 10a
• Fuse 43 10a
• Fuse 50a
• Fuse bracket
• Fuse panel
• G202 (behind left side of dash)
• Hot at all times
• Hot in run or start
• Ignition switch
• Knock sensor (ks) 1 (left front side of engine)
• Knock sensor (ks) 2 (left side of engine, behind ignition coil)
• Nca
• Off
• Positive crankcase ventilation (pvc) heating element (in fresh air intake hose)
• Red
• Relay panel
• Run
• S3/3
• S3/6
• Secondary air injection (air) pump relay (at left side of engine compt, behind air cleaner housing)
• Secondary air injection pump motor (left rear side of engine)
• Start

2.0L, Engine Performance Wiring Diagrams (3 of 3) for Volkswagen GTI GLS 1999

List of elements for 2.0L, Engine Performance Wiring Diagrams (3 of 3) for Volkswagen GTI GLS 1999:

• (not used)
• Anti-lock brake system
• Brake- light switch (above brake pedal)
• Camshaft position (cmp) sensor (on cylinder head)
• Engine coolant temperature (ect) sensor (on cylinder head, in coolant flange)
• Fuel injectors
• Fuse 10a
• Fuse panel
• G121 (center of firewall)
• Hot at all times
• Ignition coil
• Motronic engine control module (ecm) (at base of windshield, in center plenum)
• Nca
• Throttle valve control module (on throttle body)
• To spark plugs
• W/ cruise
• W/o cruise

2.8L

2.8L, Engine Performance Wiring Diagrams (1 of 3) for Volkswagen GTI GLS 1999

List of elements for 2.8L, Engine Performance Wiring Diagrams (1 of 3) for Volkswagen GTI GLS 1999:

• (not used)
• (pins 6-24 not used)
• Acc
• Accelerator pedal position sensors 1 & 2 (in pedal assembly)
• Air conditioning system
• Anti-lock brakes system
• Cruise control system
• Data link connector
• Evaporative emission (evap) canister purge regulator valve (right side of eng compt)
• Fuel pump relay
• Fuse 10a
• Fuse 15a
• Fuse 50a
• Fuse bracket
• Fuse panel
• G121 (center of firewall)
• Heated oxygen sensor (ho2s) (ahead of three way catalytic converter)
• Hot at all times
• Ignition switch
• Leak detection pump (ldp) (inside right rear wheelhousing)
• Lock
• Mass airflow (maf) sensor & intake air temperature (iat) sensor (in intake air duct)
• Motronic engine control module (ecm) (center of firewall, in plenum)
• Nca
• Oxygen sensor (o2s) (rear of catalytic converter)
• Red
• Relay panel
• Run
• S3/1
• S3/2
• S3/3
• S3/5
• S3/6
• Start
• Starting/ charging system

2.8L, Engine Performance Wiring Diagrams (2 of 3) for Volkswagen GTI GLS 1999

List of elements for 2.8L, Engine Performance Wiring Diagrams (2 of 3) for Volkswagen GTI GLS 1999:

• (beside steering column) g202
• (mfi only)
• (mil)
• Air bag control module
• Engine speed (rpm) sensor (lower left front side of eng cylinder block)
• Fuel pump (in fuel tank)
• Fuse 10a
• Fuse panel
• G123 (right side of firewall)
• Instrument cluster
• Knock sensor (ks) 1 (right rear of engine cylinder block)
• Knock sensor (ks) 2 (left front of engine cylinder block)
• Malfunction indicator lamp
• Nca
• Red
• Secondary air injection (air) pump motor (front left side of engine)
• Secondary air injection (air) pump relay (left rear of engine compt)
• Secondary air injection (air) solenoid valve (front left side of engine)
• T32/11
• T32/13
• T32/21
• T32/25
• T32/3
• T32/32
• T32a/10
• T32a/32

2.8L, Engine Performance Wiring Diagrams (3 of 3) for Volkswagen GTI GLS 1999

List of elements for 2.8L, Engine Performance Wiring Diagrams (3 of 3) for Volkswagen GTI GLS 1999:

• (center of firewall)
• (center of firewall) g121
• (front left side of engine) intake manifold change-over valve
• (in take air duct) positive crankcase ventilation (pvc) heating element
• Brake- light switch (above brake pedal)
• Camshaft position (cmp) sensor (left side of engine cylinder head)
• Clutch vacuum vent valve switch (above clutch pedal)
• Cruise control system
• Engine coolant temperature (ect) sensor (left front of engine, in coolant flange)
• Fuel injectors
• Fuse 10a
• Fuse 7.5a
• Fuse panel
• G121
• Hot at all times
• Ignition coil (on left side of cylinder head)
• Motronic engine control module (ecm) (center of firewall, in plenum)
• Nca
• Spark plugs
• Throttle valve control module (on throttle body)
• Transmissions system