ENGINE PERFORMANCE – Audi A8 L Quattro 2004 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagram (1 of 4) for Audi A8 L Quattro 2004

List of elements for 4.2L, Engine Performance Wiring Diagram (1 of 4) for Audi A8 L Quattro 2004:

• (in plenum chamber e-box) plenum chamber e-box relay panel
• (under left side of dash) data link connector
• 12a
• 21a
• 22a
• 30a
• Anti-lock brakes system
• Brake light switch
• Computer data lines system
• Cruise control system
• Engine control module (on passenger's side plenum chamber e-box)
• Evaporative emission canister purge solenoid valve
• Exterior lights system
• Fuse 150a
• Fuse 30a
• Fuse 50a
• Fuse 5a
• G43 (above right kick panel)
• Hot at all times
• Left instrument panel fuse panel (behind left side of dash)
• Mass air flow sensor
• Red
• Right instrument panel fuse panel (behind right side of dash)
• Right luggage compartment fuse panel (right side of luggage compt)
• Secon- dary air injection pump relay
• Secondary air injection pump motor (between right front bumper & wheelwell liner)
• Starting/ charging system
• Throttle position sensor (on accelerator pedal)
• Transmission controls system

4.2L, Engine Performance Wiring Diagram (2 of 4) for Audi A8 L Quattro 2004

List of elements for 4.2L, Engine Performance Wiring Diagram (2 of 4) for Audi A8 L Quattro 2004:

• (left rear whellwell) leak detection pump (ldp)
• (left side of engine compt) left electro- hydraulic engine mount solenoid valve
• (right side of engine compt) right electro- hydraulic engine mount solenoid valve
• Camshaft position sensor (cmp)
• Camshaft position sensor (cmp) 2
• Engine coolant temperature sensor
• Evaporative emission canister purge regulator valve
• Fuse 10a
• Heated oxygen sensor (ho2s)
• Heated oxygen sensor (ho2s) 2
• Intake air switch over valve
• Intake change over valve
• Nca
• Oxygen sensor (behind twc)
• Oxygen sensor 2 (behind twc)
• Red
• Right instrument panel fuse panel (behind right side of dash)
• Secondary air injection solenoid valve

4.2L, Engine Performance Wiring Diagram (3 of 4) for Audi A8 L Quattro 2004

List of elements for 4.2L, Engine Performance Wiring Diagram (3 of 4) for Audi A8 L Quattro 2004:

• 28a
• 29a
• 31a
• Camshaft adjustment valve 1
• Camshaft adjustment valve 2
• Fuel pump relay
• Fuse 15a
• Fuse 20a
• Fuse 5a
• G17 (on intake manifold)
• G43 (above right kick panel)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Instrument cluster
• Instrument cluster combination processor
• Nca
• Plug spark
• Red
• Right instrument panel fuse panel (behind right side of dash)
• Right kick panel relay panel (right front kick panel)
• Spark plug
• T32
• Torque support valve

4.2L, Engine Performance Wiring Diagram (4 of 4) for Audi A8 L Quattro 2004

List of elements for 4.2L, Engine Performance Wiring Diagram (4 of 4) for Audi A8 L Quattro 2004:

• Compt relay & fuse panel (right side of luggage compt
• Cooling fans system
• Engine control module (on passenger's side plenum chamber e-box)
• Engine speed sensor
• Fuel gauge sender
• Fuel injectors
• Fuel level sensor 2
• Fuel pump
• Fuel pump 2 relay
• Fuse 20a
• G44 (above left kick panel)
• G675 (right side of luggage compt)
• Hot at all times
• Kick down switch (under accelerator pedal)
• Knock sensor 1
• Knock sensor 2
• Nca
• Red
• Right luggage compt fuse panel (right side of luggage compt)
• Starting/ charging system
• Throttle valve control module (behind intake manifold on throttle valve housing)
• Transfer fuel pump