Installation position, overview
NOTE:
The following list refers to items in Fig 1.
- - Harness connector for engine bank 1 Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) -G130- and heater for oxygen sensor 1 -Z29-
- 4-pin/green
- - Harness connector for engine bank 2 Oxygen Sensor (O2S) 2 behind Three Way Catalytic Converter (TWC) -G131- and heater for oxygen sensor 2 -Z30-
- 4pin/brown
- - Harness connector for engine bank 1 Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) -G39- and Oxygen Sensor (O2S) heater -Z19-
- 4-pin/black
- - 3-way connector
- For Knock Sensor (KS) 1 -G61-
- - Engine Coolant Temperature (ECT) sensor -G62-
- At coolant line behind cylinder head engine bank 1
- - Wastegate bypass regulator valve -N75-
- - Evaporative Emission (EVAP) canister purge regulator valve -N80-
- - Sensor -1- for exhaust temperature -G235-
- At the left rear of the intake manifold; for vehicles with automatic transmission sensor -2-, exhaust temperature -G236- is also installed at this position.
- - Secondary Air Injection (AIR) solenoid valve -N112-
- Only for vehicles with automatic transmission
- - Secondary Air Injection (AIR) pump motor -V101-
- Only for vehicles with automatic transmission
- - Sensor -1- for exhaust temperature -G236-
- For vehicles with automatic transmission, this sensor is located at position -8- along with sensor -1- for exhaust temperature -G235-. The two sensors are installed in series.
- - Recirculating valve for turbocharger -N249-
- - Fuel pressure regulator
- - Camshaft Position (CMP) sensor -G40-
- Engine bank 2
- - Secondary Air Injection (AIR) pump relay -J299-
- Only for vehicles with automatic transmission
- - Motronic Engine Control Module (ECM) -J220-
- - 3-way connector
- For Engine Speed (RPM) sensor -G28-
- Gray
- - 3-way connector
- For Knock Sensor (KS) 2 -G66-
- - Harness connector for Heated Oxygen Sensor (HO2S) 2 -G108- and Oxygen Sensor (O2S) 2 heater -Z28-
- 4-pin/black
- - Valve -2- for camshaft adjustment -N208-
- - Throttle Valve Control Module -J338-
- With throttle drive (power accelerator actuation) -G186-, angle sensor -1- for throttle drive (power accelerator actuation) -G187-, and angle sensor -2- for throttle drive (power accelerator actuation) -G188-
- - Charge air pressure sensor -G31-
- Located in rubber shroud in front of throttle valve control module
- - Camshaft Position (CMP) sensor 2 -G163-
- Engine bank 1
- - Power output stage 2 -N192-
- For ignition coils engine bank 2
- - Power output stage -N122-
- For ignition coils engine bank 1
Fig 1: Identifying Fuel Injection & Ignition System Components (Engine Compartment) - Items 1 Through 25Courtesy of AUDI OF AMERICA, INC.
NOTE: The following list refers to items in Fig 2. - - Valve -1- for camshaft adjustment -N205-
- - Engine bank 1, Heated Oxygen Sensor (HO2S) -G39- -Z19-
- - Knock Sensor (KS) 1 - G61-
- - Knock Sensor (KS) 2 - G66-
- - Engine Speed (RPM) sensor -G28-
- Located in transmission housing above sensor disk
- - Engine bank 2, Heated Oxygen Sensor (HO2S) 2 -G108- -Z28-
- - Ignition coils engine bank 2
- Ignition coil 4 -N163-
- Ignition coil 5 -N164-
- Ignition coil 6 -N189-
- - Fuel injectors
Cylinder bank 2
- Cylinder 4 fuel injector -N33-
- Cylinder 5 fuel injector -N83-
- Cylinder 6 fuel injector -N84-
- - Intake Air Temperature (IAT) sensor -G42-
- On the lower front part of the intake manifold, near the throttle valve control module
- - 2-way connector
- For Intake Air Temperature (IAT) sensor (measurements are made at this connector)
- - Fuel Injectors
Cylinder bank 1
- Cylinder 1 fuel injector -N30-
- Cylinder 2 fuel injector -N31-
- Cylinder 3 fuel injector -N32-
- - Ignition coils engine bank 1
- Ignition coil 1 -N-
- Ignition coil 2 -N128-
- Ignition coil 3 -N158-
- - Mass Air Flow (MAF) sensor -G70-