ENGINE PERFORMANCE – Audi S4 Quattro 2005 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagram, Early Production (1 of 4) for Audi S4 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram, Early Production (1 of 4) for Audi S4 Quattro 2005:

• 14a
• 43a
• Brake- light switch
• Clutch vacuum vent valve switch (m/t)
• E-box relay carrier
• Fuse 10a
• Fuse 15a
• Fuse 40a
• Fuse holder
• G12
• Heated oxygen sensor
• Heated oxygen sensor 2
• Hot at all times
• Hot in run or start
• Mass airflow (maf) sensor
• Motronic engine control module
• Oxygen sensor
• Oxygen sensor 2
• Red
• Secondary air injection (air) pump relay
• Secondary air injection pump motor
• Steering column electronic systems control module
• T16a
• Throttle position (tp) & accelerator pedal position (app) sensors

4.2L, Engine Performance Wiring Diagram, Early Production (2 of 4) for Audi S4 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram, Early Production (2 of 4) for Audi S4 Quattro 2005:

• After-run coolant pump
• Coolant circulation pump relay
• Engine coolant temperature (ect) sensor
• Engine speed (rpm) sensor
• Evaporative emission (evap) canister purge regulator valve
• G12
• Knock sensor (ks) 1
• Knock sensor (ks) 2
• Knock sensor (ks) 3
• Knock sensor (ks) 4
• Leak detection pump (ldp)
• Nca
• Red
• Secondary air injection (air) solenoid valve

4.2L, Engine Performance Wiring Diagram, Early Production (3 of 4) for Audi S4 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram, Early Production (3 of 4) for Audi S4 Quattro 2005:

• (mil)
• Acc
• Camshaft adjustment valve 1
• Camshaft adjustment valve 2
• Camshaft position sensor
• Camshaft position sensor 2
• Coil 1
• Coil 2
• Coil 3
• Coil 4
• Coil 5
• Coil 6
• Coil 7
• Coil 8
• Computer data lines system
• Data link connector
• E-box relay carrier
• Exhaust flap valve
• Fuse 15a
• Fuse 20a
• Fuse holder
• G12
• G19
• Hot at all times
• Ignition switch
• Instrument cluster
• Lock
• Malfunction indicator lamp
• Nca
• Off
• Red
• Run
• Start
• T32a/12
• T32a/13
• T32a/23
• To spark plug

4.2L, Engine Performance Wiring Diagram, Early Production (4 of 4) for Audi S4 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram, Early Production (4 of 4) for Audi S4 Quattro 2005:

• 9-pin relay carrier
• Cooling fans system
• E-box relay carrier
• Fuel injectors
• Fuel pump motor
• Fuel pump relay
• Fuse 150a
• Fuse 15a
• Fuse 20a
• Fuse holder
• G78
• Hot at all times
• Intake manifold change- over valve
• Left electro- hydraulic engine mount solenoid
• Main fuse
• Motronic engine control module
• Red
• Relay plate
• Right electro- hydraulic engine mount solenoid
• Throttle valve control module
• Transmission control module

4.2L, Engine Performance Wiring Diagram, Late Production (1 of 4) for Audi S4 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram, Late Production (1 of 4) for Audi S4 Quattro 2005:

• 14a
• 43a
• Brake- light switch
• Clutch pedal switch (m/t)
• E-box relay carrier
• Engine control module
• Fuse 10a
• Fuse 15a
• Fuse 40a
• Fuse holder
• G12
• Heated oxygen sensor
• Heated oxygen sensor 2
• Hot at all times
• Hot in on or start
• Mass airflow (maf) sensor
• Oxygen sensor
• Oxygen sensor 2
• Red
• Secondary air injection (air) pump relay
• Secondary air injection pump motor
• Steering column electronic systems control module
• T16a
• Throttle position (tp) & accelerator pedal position (app) sensors

4.2L, Engine Performance Wiring Diagram, Late Production (2 of 4) for Audi S4 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram, Late Production (2 of 4) for Audi S4 Quattro 2005:

• (if equipped) after-run coolant pump
• (if equipped) coolant circulation pump relay
• Engine coolant temperature (ect) sensor
• Engine speed (rpm) sensor
• Evaporative emission (evap) canister purge regulator valve
• G12
• Knock sensor (ks) 1
• Knock sensor (ks) 2
• Knock sensor (ks) 3
• Knock sensor (ks) 4
• Leak detection pump (ldp)
• Nca
• Red
• Secondary air injection (air) solenoid valve

4.2L, Engine Performance Wiring Diagram, Late Production (3 of 4) for Audi S4 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram, Late Production (3 of 4) for Audi S4 Quattro 2005:

• (a/t) exhaust flap valve
• (mil)
• Acc
• Camshaft adjustment valve 1
• Camshaft adjustment valve 2
• Camshaft position sensor
• Camshaft position sensor 2
• Coil 1
• Coil 2
• Coil 3
• Coil 4
• Coil 5
• Coil 6
• Coil 7
• Coil 8
• Computer data lines system
• Data link connector
• Fuse 20a
• Fuse holder
• G12
• G19
• Hot at all times
• Ignition switch
• Instrument cluster
• Lock
• Malfunction indicator lamp
• Nca
• Off
• Red
• Start
• T32a/12
• T32a/13
• T32a/23
• To spark plug

4.2L, Engine Performance Wiring Diagram, Late Production (4 of 4) for Audi S4 Quattro 2005

List of elements for 4.2L, Engine Performance Wiring Diagram, Late Production (4 of 4) for Audi S4 Quattro 2005:

• 9-pin relay carrier
• Cooling fans system
• E-box relay carrier
• Engine control module
• Fuel injectors
• Fuel pump motor
• Fuel pump relay
• Fuse 150a
• Fuse 15a
• Fuse 20a
• Fuse holder
• G78
• Hot at all times
• Intake manifold change- over valve
• Left electro- hydraulic engine mount solenoid
• Main fuse
• Red
• Relay plate
• Right electro- hydraulic engine mount solenoid
• Throttle valve control module
• Transmission control module