ENGINE PERFORMANCE – Audi S8 2013 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.0L TURBO

4.0L Turbo, Engine Performance Wiring Diagram (1 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (1 of 11) for Audi S8 2013:

• (behind right kick panel) g43
• (top of brake pedal assembly) brake lamp switch
• 14a
• Comfort system central control module (right side of luggage compt)
• Cooling fans system
• Cruise control system
• Engine control module (ecm) (center rear of engine compt)
• Fuse 35a
• Fuse 5a
• Fuse carrier
• Fuse panel b (right end of dash)
• Fuse panel f (right front luggage compt)
• G602 (left front foot well)
• Heated oxygen sensor (upstream of right bank catalytic converter)
• Heated oxygen sensor 2 (upstream of right bank catalytic converter)
• Heater for oxygen sensor 1 after catalytic converter & oxygen sensor after three way catalytic converter
• Hot at all times
• Nca
• Red
• Starting/ charging system
• T14b
• T17f
• T17g
• T17k
• T32c
• T91
• Transmission control module (tcm) (in bottom of transmission)
• Transmission fluid cooling valve (in lower left engine compt)

4.0L Turbo, Engine Performance Wiring Diagram (2 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (2 of 11) for Audi S8 2013:

• (behind right kick panel) g43
• (between right front bumper & wheel well liner) secondary air injection pump motor
• 50a
• Computer data lines system
• Digital sound system control module
• Fuse 7.5a
• Fuse carrier
• Fuse panel f (right front luggage compt)
• G639 (on left kick panel)
• Hot at all times
• Power distribution system
• Red
• Secondary air injection pump fuse
• Secondary air injection pump relay
• Subframe mount actuator 1 (right front of engine compt)
• Subframe mount actuator 2 (left front of engine compt)
• Subframe mount control module
• Subframe mount sensor 1 (right side of engine compt)
• Subframe mount sensor 2 (left side of transmission)
• T10ax
• T17h
• T18d

4.0L Turbo, Engine Performance Wiring Diagram (3 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (3 of 11) for Audi S8 2013:

• 10a
• 11a
• 12a
• Brake booster pressure sensor (w/ start/ stop system) (inside plenum chamber, front of brake booster)
• Charge air cooler temperature sensor 1 (under throttle valve)
• Charge air cooler temperature sensor 2 (under throttle valve)
• Cooling fan control module
• Cooling fan control module 2
• Fuel pump (fp) relay (in relay & fuse carrier, right side of luggage compt)
• Fuel pump control module
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse 5a
• Fuse panel a (right side of engine compt)
• G62 (right lower "c" pillar)
• G675 (right side of luggage compt)
• Manifold absolute pressure sensor (right front of engine, under charge air cooler housing)
• Nca
• Red
• T10g
• T14b
• T17f
• T2t
• T2u
• T3x
• T8at
• Transfer fuel pump

4.0L Turbo, Engine Performance Wiring Diagram (4 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (4 of 11) for Audi S8 2013:

• (left front foot well) g602
• Camshaft adjustment valve 1 (rear of cylinder bank 1)
• Camshaft adjustment valve 2 (rear of cylinder bank 2)
• Computer data lines system
• Display unit
• Engine coolant level sensor
• Engine electronics indicator lamp
• Exhaust camshaft adjustment valve 1 (rear of cylinder bank 1)
• Exhaust camshaft adjustment valve 2 (rear of cylinder bank 2)
• Exhaust door vavle 1
• Exhaust door vavle 2
• Fuel gauge
• Fuse 5a
• Fuse carrier 6
• Fuse panel f (right front luggage compt)
• G34 (under driver's seat)
• Hot at all times
• Instrument cluster control module
• Structure borne sound actuator
• Structure borne sound control module (if equipped)
• T16c
• T17h
• T32
• T32b
• T4hm
• Vehicle electrical system control module (behind left side of dash)
• Wastegate bypass regulator valve (left front of engine)

4.0L Turbo, Engine Performance Wiring Diagram (5 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (5 of 11) for Audi S8 2013:

• (front center of engine) oil temperature sensor 2
• (front left side of engine) secondary air injection solenoid valve 2
• (in the left lower coolant hoses on the radiator) engine coolant temperature sensor
• (not used)
• (top right of engine) cylinder 1 exhaust camshaft adjuster 3
• (top right of engine) cylinder 1 intake camshaft adjuster 2
• (top right of engine) cylinder 2 exhaust camshaft adjuster 2
• Cylinder 1 exhaust camshaft adjuster 2 (top right of engine)
• Cylinder 1 intake camshaft adjuster 3 (top right of engine)
• Cylinder 2 exhaust camshaft adjuster 3 (top right of engine)
• Cylinder 2 intake camshaft adjuster 2 (top right of engine)
• Cylinder 2 intake camshaft adjuster 3 (top right of engine)
• T17g

4.0L Turbo, Engine Performance Wiring Diagram (6 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (6 of 11) for Audi S8 2013:

• (front of engine, on throttle) throttle valve control module
• (fuel injector cylinder 1 & 2: front of cylinder bank 1) (fuel injector cylinder 3 & 4: rear of cylinder bank 1) (fuel injector cylinder 5 & 6: front of cylinder bank 2) (fuel injector cylinder 7 & 8: rear of cylinder bank 2) fuel injector cylinders
• (rear of right side of engine) intake manifold runner position sensor
• (right front of engine compt) engine coolant temperature sensor on radiator outlet
• Engine control module (ecm) (center rear of engine compt)
• Oil pressure switch (right side of engine)
• Reduced oil pressure switch (near engine oil filter)
• T105

4.0L Turbo, Engine Performance Wiring Diagram (7 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (7 of 11) for Audi S8 2013:

• (front of cylinder bank no. 2) intake manifold runner position sensor 2
• (left front of engine) charge air pressure sensor 2
• (left side of engine) fuel pressure sensor 2
• (right center of engine compt) secondary air injection sensor 1
• (right front of engine) charge air pressure sensor
• (right front of engine) engine temperature control sensor
• (right side of engine) fuel pressure sensor
• (top of cylinder bank no. 1) low fuel pressure sensor
• (top right of engine under cover) engine cover temperature sensor
• Camshaft position sensor (side of right cylinder head)
• Camshaft position sensor 2 (side of left cylinder head)
• Camshaft position sensor 4 (top of left cylinder head)
• Intake air temperature (iat) sensor (rear of cylinder bank 1)
• Knock sensor 1 (right side of engine)
• Knock sensor 2 (right side of engine)
• Knock sensor 3 (left side of engine)
• Knock sensor 4 (left side of engine)
• Nca
• Red

4.0L Turbo, Engine Performance Wiring Diagram (8 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (8 of 11) for Audi S8 2013:

• Engine control module (ecm) (center rear of engine compt)
• Fuel metering valve (top of cylinder bank 1)
• Fuel metering valve 2 (top of cylinder bank 2)
• Red
• T105

4.0L Turbo, Engine Performance Wiring Diagram (9 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (9 of 11) for Audi S8 2013:

• (left front of engine compt) after-run coolant pump
• (left front of engine) oil pressure regulator valve
• (left rear of engine) engine coolant circulation pump 2
• (left side of transmission) transmission mount valve 2
• (right side of transmission) transmission mount valve 1
• (top left of engine)
• (under left headlamp) (if equipped) transmission coolant valve
• (under left headlamp) charge air cooling pump
• Cylinder 1 exhaust camshaft adjuster 5
• Cylinder 1 exhaust camshaft adjuster 8
• Cylinder 1 intake camshaft adjuster 5
• Cylinder 1 intake camshaft adjuster 8
• Cylinder 2 exhaust camshaft adjuster 5
• Cylinder 2 exhaust camshaft adjuster 8
• Cylinder 2 intake camshaft adjuster 5
• Cylinder 2 intake camshaft adjuster 8
• G43 (behind right kick panel)
• G639 (on left kick panel)
• T14b

4.0L Turbo, Engine Performance Wiring Diagram (10 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (10 of 11) for Audi S8 2013:

• (left front of engine) bank 2 turbocharger recirculation valve
• (left front of engine) cylinder head coolant valve
• (left side of engine) secondary air injection solenoid valve
• (lower left front of engine) map controlled engine cooling thermostat
• (rear right side of engine) intake manifold runner control valve
• (right front of engine) turbocharger recirculation valve
• (right rear of engine) evap canister purge regulator valve 1
• (top center of engine on inner v-cover) piston cooling nozzle control valve
• G43 (behind right kick panel)
• G600 (on right cylinder head)
• G601 (on left cylinder head)
• Ignition coils 1, 2, 3 & 4 w/ power output stage (top of cylinder bank 1)
• Ignition coils 5, 6, 7 & 8 w/ power output stage (top of cylinder bank 2)
• Nca
• T8at
• To spark plug

4.0L Turbo, Engine Performance Wiring Diagram (11 of 11) for Audi S8 2013

List of elements for 4.0L Turbo, Engine Performance Wiring Diagram (11 of 11) for Audi S8 2013:

• (bottom of engine oil pan) oil level thermal sensor
• 11a
• 15a
• Accelerator pedal position sensor & accelerator pedal position sensor 2 (at accelerator pedal)
• Camshaft position sensor 3 (top of right cylinder head)
• Computer data lines system
• Engine control module (ecm) (center rear of engine compt)
• Engine speed sensor (lower rear of engine)
• Fuel tank leak detection control module (under the right rear wheel housing liner)
• Fuel tank pressure sensor
• Fuse 15a
• Fuse 25a
• Fuse 5a
• Fuse carrier
• Fuse panel f (right front luggage compt)
• G43 (behind right kick panel)
• Heater for oxygen sensor 2 after catalytic converter & oxygen sensor after catalytic converter
• Hot at all times
• Nca
• Oil pressure switch (level 3) (rear of engine, under charge air cooler housing)
• Power distribution system
• Starting/charging system
• T105
• T17f
• T17g
• T17k
• T8at
• T91