ENGINE PERFORMANCE – Audi TT Quattro 2005 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

1.8L

1.8L, Engine Performance Wiring Diagram (1 of 3) for Audi TT Quattro 2005

List of elements for 1.8L, Engine Performance Wiring Diagram (1 of 3) for Audi TT Quattro 2005:

• (lower left side of eng, below intake manifold) secondary air injection pump motor
• (under battery tray) g12
• 4 pin ho2s
• 6 pin ho2s
• A/c system
• Accelerator pedal position sender 2/ throttle position (tp) sensor (above accelerator pedal)
• Brake- light switch (above brake pedal, on bracket)
• Charging circuit
• Clutch vacuum vent valve switch (above clutch pedal, on bracket)
• Computer data lines system
• Cruise control system
• Engine compartment w-box
• Exhaust temperature sensor (w/ bea engine)
• Fuse 10a
• Fuse 15a
• Fuse 7.5a
• Fuse panel
• G12 (under battery tray)
• Heated oxygen sensor (on exhaust system, upstream of twc)
• Heated oxygen sensor 1 (on exhaust system, downstream of twc)
• Hot at all times
• Hot in run or start
• Main fuse box (top of battery)
• Mass airflow (maf) sensor (on air cleaner housing)
• Motronic engine control module (in center plenum, between firewall & base of windshield)
• Nca
• Power steering pressure switch (atc, awp engines) (on power steering pump)
• Red
• Safety fuse 1 50a
• Secondary air injection (air) pump relay
• Suppression filter

1.8L, Engine Performance Wiring Diagram (2 of 3) for Audi TT Quattro 2005

List of elements for 1.8L, Engine Performance Wiring Diagram (2 of 3) for Audi TT Quattro 2005:

• (front of cylinder head, behind timing belt cover) camshaft position (cmp) sensor 2
• (left of steering column)
• (left side of eng, below intake manifold) secondary air injection (air) solenoid valve
• (mil)
• (on transmission) speedometer vehicle speed sensor
• (under battery tray)
• Brake system vacuum pump
• Charge air pressure sensor
• Computer data lines system
• Engine coolant temperature (ect) sensor (rear of cylinder, on coolant outlet)
• Engine speed (rpm) sensor (left side of cylinder block, next to oil filter)
• Evaporative emission (evap) canister purge regulator valve (next to coolant reservoir, on right side of eng compt)
• Fuse 10a
• Fuse 15a
• Fuse panel
• G12
• G42
• Hot at all times
• Hot in start or run
• Ignition switch
• Instrument cluster
• Intake air temperature sensor (on intake manifold, near throttle body)
• Knock sensor (ks) 1 (left front of cylinder block)
• Knock sensor (ks) 2 (left rear of cylinder block)
• Leak detection pump (ldp) (inside right front wheelwell)
• Malfunction indicator lamp
• Nca
• Off
• Red
• Run
• Start
• T32/28
• T32/3
• T32a/18
• T32a/19
• T32a/28
• Turbocharge recirculating valve
• Wastegate bypass regulator valve (left rear corner of eng compt, on intake duct)

1.8L, Engine Performance Wiring Diagram (3 of 3) for Audi TT Quattro 2005

List of elements for 1.8L, Engine Performance Wiring Diagram (3 of 3) for Audi TT Quattro 2005:

• (on steering column) g42
• 87f
• Camshaft adjustment valve 1 (atc, awp eng only)
• Cruise control system
• Driver's door contact switch
• Emergency flasher switch, airbag control module & central locking control module
• Evaporative emission (evap) canister purge solenoid valve
• Fuel injectors
• Fuel pump (in fuel tank)
• Fuel pump relay
• Fuse 10a
• Fuse 20a
• Fuse panel
• G12 (under battery tray)
• G15 (top front of engine)
• G42 (on steering column)
• Hot at all times
• Hydraulic pump relay fuse 20a
• Ignition coils
• Micro central electric panel
• Motronic engine control module (in center plenum, between firewall & base of windshield)
• Nca
• Red
• Throttle valve control module (on throttle body, on left front of eng)
• To spark plugs

3.2L

3.2L, Engine Performance Wiring Diagram (1 of 4) for Audi TT Quattro 2005

List of elements for 3.2L, Engine Performance Wiring Diagram (1 of 4) for Audi TT Quattro 2005:

• (center plenum chamber) g608
• (left rear of engine compt) engine compartment w-box
• Air conditioning system
• Brakelight switch (above brake pedal)
• Charging circuit
• Computer data lines system
• Cruise control system
• Fuse 10a
• Fuse 15a
• Fuse 7.5a
• Fuse holder (left end of dash)
• G12 (under battery tray)
• Heated oxygen sensor (upstream of of three way catalytic converter)
• Heated oxygen sensor 1 (upstream of of three way catalytic converter)
• Heated oxygen sensor 2 (downstream of of three way catalytic converter)
• Hot at all times
• Hot in run or start
• Mass airflow (maf) sensor (on air cleaner housing)
• Motronic engine control module (between firewall & windshield base)
• Nca
• Red
• Secondary air injection (air) pump relay
• Secondary air injection pump motor (lower left side of engine)
• Suppression filter
• Throttle position (tp) sensor (above accelerator pedal)

3.2L, Engine Performance Wiring Diagram (2 of 4) for Audi TT Quattro 2005

List of elements for 3.2L, Engine Performance Wiring Diagram (2 of 4) for Audi TT Quattro 2005:

• (on coolant outlet) engine coolant temperature (ect) sensor
• Engine speed (rpm) sensor (next to oil filter)
• Evaporative emission (evap) canister purge regulator valve (next to coolant reservoir)
• Evaporative emission (evap) canister purge solenoid valve
• G12 (under battery tray)
• Hot at all times
• Intake change-over valve
• Knock sensor (ks) 1 (left front of cylinder block)
• Knock sensor (ks) 2 (left rear of cylinder block)
• Leak detection pump (ldp) (inside right front wheelwell)
• Main fuse box (top of battery)
• Nca
• Positive crankcase ventilation (pcv) heating element
• Power steering sensor
• Red
• Safety fuse 1 50a
• Secondary air injection (air) solenoid valve (left side of engine)

3.2L, Engine Performance Wiring Diagram (3 of 4) for Audi TT Quattro 2005

List of elements for 3.2L, Engine Performance Wiring Diagram (3 of 4) for Audi TT Quattro 2005:

• (mil)
• Brake system vacuum pump
• Camshaft adjustment valve 1
• Camshaft adjustment valve 1 (exhaust)
• Camshaft position sensor
• Camshaft position sensor 2 (front of cylinder head)
• Coil
• Computer data lines system
• Fuse 15a
• Fuse holder (left end of dash)
• G12 (under battery tray)
• G18 (on engine block)
• G42 (left of steering column)
• Hot at all times
• Ignition switch
• Instrument cluster
• Malfunction indicator lamp
• Nca
• Off
• Red
• Run
• Start
• T32
• T32a
• To spark plugs

3.2L, Engine Performance Wiring Diagram (4 of 4) for Audi TT Quattro 2005

List of elements for 3.2L, Engine Performance Wiring Diagram (4 of 4) for Audi TT Quattro 2005:

• (in fuel tank) fuel pump
• (left end of dash) fuse holder
• (left of steering column)
• Cooling fans system
• Cruise control system
• Driver's door contact switch
• Engine compartment w-box (left rear of engine compt)
• Exhaust flap valve
• Fuel injectors
• Fuel pump relay
• Fuse 15a
• Fuse 20a
• G42
• G42 (left of steering column)
• Hot at all times
• Hydraulic pump relay fuse 20a
• Micro central electric panel (below left side of dash)
• Motronic engine control module (between firewall & windshield base)
• Red
• Throttle valve control module