ENGINE PERFORMANCE – Audi A8 L Quattro 2001 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagram (1 of 4) for Audi A8 L Quattro 2001

List of elements for 4.2L, Engine Performance Wiring Diagram (1 of 4) for Audi A8 L Quattro 2001:

• (above right kick panel) g43
• Air conditioning system
• Brake light switch (above brake pedal, on bracket)
• Computer data lines system
• Cruise control system
• Data link connector (rapid data transfer)
• Exterior lights system
• Fuse panel (at right front of foot- well)
• Fuse s10 (st4) 10a
• Fuse s102 5a
• Fuse s117 20a
• Fuse s130 50a
• Fuse s2 (st4) 30a
• Fuse s9 (st2) 10a
• G43 (above right kick panel)
• Hot at all times
• Hot in start and run
• Instrument cluster system
• Mass air flow sensor (inside upper air cleaner housing)
• Motronic engine control module (in plenum chamber e-box)
• Plenum chamber e-box relay & fuse panel (in plenum chamber e-box)
• Red
• Secon- dary air injection pump relay
• Secondary air injection pump motor
• Throttle position sensor (on throttle body)
• Transmission control module (tcm) (in plenum chamber e-box)

4.2L, Engine Performance Wiring Diagram (2 of 4) for Audi A8 L Quattro 2001

List of elements for 4.2L, Engine Performance Wiring Diagram (2 of 4) for Audi A8 L Quattro 2001:

• (on front of intake manifold) intake changed over valve
• (on right side of eng compt, near air cleaner assembly) evaporative emission canister purge regulator valve
• Camshaft position sensor (cmp) 2 (early production) camshaft position sensor (cmp) (late production) (on rear of left cylinder head)
• Camshaft position sensor (cmp) 2 (late production) camshaft position sensor (cmp) (early production) (on rear of left cylinder head)
• Early pro- duction
• Engine coolant temperature sensor (on rear of right cylinder head)
• G269 (in instrument panel harness)
• Heated oxygen sensor (ho2s) (near rear of right exhaust manifold)
• Heated oxygen sensor (ho2s) 2 (near rear of left exhaust manifold)
• Intake manifold tuning valve 2
• Late pro- duction
• Leak detection pump (ldp)
• Left electro- hydraulic engine solenoid valve
• Nca
• Oxygen sensor (behind twc) (in right exhaust pipe, downstream from three way catalytic converter)
• Oxygen sensor 2 (behind twc) (in left exhaust pipe, downstream from three way catalytic converter)
• Red
• Right electro- hydraulic engine solenoid valve
• Secondary air injection solenoid valve

4.2L, Engine Performance Wiring Diagram (3 of 4) for Audi A8 L Quattro 2001

List of elements for 4.2L, Engine Performance Wiring Diagram (3 of 4) for Audi A8 L Quattro 2001:

• 87a
• 87f
• Camshaft adjustment valve 1
• Camshaft adjustment valve 2
• Central electric panel
• Distributor ignition capacitor
• Dti
• Fuel gauge sender
• Fuel pump (in right side of fuel tank, accessible from right front of trunk)
• Fuel pump relay
• Fuse panel (at right front of foot- well)
• Fuse s1 (st4) 20a
• Fuse s3 (st4) 20a
• G17 (on intake manifold)
• G269 (in instrument panel harness)
• G43 (above right kick panel)
• G49 (near fuel pump)
• Hot at all times
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Nca
• Plug spark
• Spark plug

4.2L, Engine Performance Wiring Diagram (4 of 4) for Audi A8 L Quattro 2001

List of elements for 4.2L, Engine Performance Wiring Diagram (4 of 4) for Audi A8 L Quattro 2001:

• Anti-lock brakes system
• Central electric panel
• Cruise control system
• Engine speed sensor (on left front of transmission)
• Fuel gauge sender 2 (in left side of fuel tank, accessible from left front of trunk)
• Fuel injectors
• Fuse s113 15a
• Fuse s116 20a
• Hot at all times
• Instrument cluster
• Instrument cluster combination processor
• Knock sensor 1 (under intake manifold, below right cylinder head)
• Knock sensor 2 (on left side of eng block)
• Motronic engine control module (in plenum chamber e-box)
• Nca
• Plenum chamber e-box relay & fuse panel (in plenum chamber e-box)
• Red
• T32
• Throttle valve control module