Fuel Delivery and Air Induction: Locations
Fuel Injection System Component Location Overview
• The mass airflow sensor (G70) is no longer installed from MY 2009. The intake air temperature sensor (G42) is installed on the intake manifold with the manifold absolute pressure sensor (G71).
The following components are not displayed in the overview:
Manifold Absolute Pressure (MAP) sensor
• Installed location: Below the throttle valve control module
Accelerator pedal position sensor (G79) / accelerator pedal position sensor 2 (G185)
• Installed location: In the accelerator pedal
Leak detection pump (V144)
• Installed location: In the right rear wheel housing
Clutch position sensor (G476)
• Only for vehicles with a manual transmission
• Installed location: on the clutch master cylinder
1 Fuel Injectors (N30, N31, N32, N33, N83)
• Removing and installing, refer to => [ Fuel Injectors ] Fuel Injectors.
2 Camshaft Position Sensor (G40)
3 81 Pin Connector
• Disconnect and connect the connector with the ignition turned off.
• Release to disconnect.
4 Engine Control Module (J623)
• Installed location: In the plenum chamber.
5 40 Pin Connector
• Disconnect and connect the connector with the ignition turned off.
• Release to disconnect.
6 Secondary Air Injection Solenoid Valve (N112)
• For Secondary Air Injection (AIR).
• Checking, refer to => [ Secondary Air Injection Solenoid Valve, Checking ] Secondary Air Injection Solenoid Valve, Checking.
7 Engine Coolant Temperature Sensor (G62)
• If necessary release pressure in the cooling system before removing.
8 EVAP Canister Purge Regulator Valve 1 (N80)
• Installed position: The arrow points in the direction of flow.
9 Ignition Coil with Power Output Stage (N70, N127, N291, N292, N323)
• Removing and installing, refer to => [ Ignition Coil with Power Output Stage ] Service and Repair.
10 MAF Sensor
• The MAF sensor is no longer installed from MY 2009. The IAT sensor is installed on the intake manifold with the Manifold Absolute Pressure (MAP) sensor.
11 E-box, in Engine Compartment, Left Side
Component location of:
• Secondary air injection pump relay (J299) => [ Secondary Air Injection Pump Relay ].
• Fuel pump relay, refer to => [ Fuel Pump Relay ].
• Terminal 30 power supply relay (J317) => [ Terminal 30 Power Supply Relay ].
• Terminal 15 power supply relay (J329) => [ Terminal 15 Power Supply Relay ].
• Fasteners
12 Engine Speed Sensor (G28)
• Secured to sealing flange, transmission side.
13 Throttle Valve Control Module (J338)
• Removing and installing, refer to => [ Throttle Valve Control Module (J338) ] Service and Repair.
14 Camshaft Adjustment Valve 1 (N205)
15 Secondary Air Injection Pump Motor (V101)
• Removing and installing, refer to => [ Secondary Air Injection Pump Motor (V101) ] Service and Repair.
16 Knock Sensor 1 (G61)
• Component location, refer to => [ Engine Overview, Rear ] Engine Overview, Rear.
17 Knock Sensor 2 (G66)
• Component location, refer to => [ Engine Overview, Rear ] Engine Overview, Rear.
18 6 Pin Harness Connector
• Contacts are gold plated.
• Black
• For the heated oxygen sensor before the catalytic converter and the oxygen sensor heater (Z19).
• Installed location: Secured to the left plenum chamber bulkhead.
19 Heated Oxygen Sensor (G39)
• 55 Nm
• Installed location: in the exhaust manifold
• Only use hot bolt paste to grease the threads, do not let the paste get onto the slits of the oxygen sensor body.
20 4 Pin Harness Connector
• Only with engine codes BGQ and CBUA.
• Contacts are gold plated.
• Black
• For the oxygen sensor in bank 1 center three way catalytic converter and the heater for oxygen sensor center catalytic converter (Z59).
• Component location, refer to => [ Exhaust Pipe with Catalytic Converter ] Exhaust Pipe With Catalytic Converter.
21 Oxygen Sensor in Bank 1 center Three Way Catalytic Converter (G465)
• 55 Nm
• Only with engine codes BGQ and CBUA.
• Installed location: in the center catalytic converter.
• Only use hot bolt paste to grease the threads, do not let the paste get onto the slits of the oxygen sensor body.
22 4 Pin Harness Connector
• Contacts are gold plated.
• Brown
• For the oxygen sensor after three way catalytic converter and heater for oxygen sensor 1 after catalytic converter (Z29).
• Component location, refer to => [ Exhaust Pipe with Catalytic Converter ] Exhaust Pipe With Catalytic Converter.
23 Oxygen Sensor after Three Way Catalytic Converter (G130)
• 55 Nm
• Installed location: in the rear catalytic converter.
• Only use hot bolt paste to grease the threads, do not let the paste get onto the slits of the oxygen sensor body.
Secondary Air Injection Pump Relay
• In the E-box in the engine compartment, at the lower right - 1 -
Terminal 30 Power Supply Relay
• In the E-box in the engine compartment - 1 -
Fuel Pump Relay
• In the E-box in the engine compartment - 2 -
Terminal 15 Power Supply Relay
• In the E-box in the engine compartment - 3 -.