Exhaust System: Locations

Component Locations: Engine Management System

Exhaust System


• 1.4L CNLA => [ 1.4L CNLA ]

• 2.0L CCTA, CBFA, BPY, CBPA and CBEA, CJAA TDI => [ 2.0L CCTA, CBFA, BPY, CBPA and CBEA, CJAA TDI ]

• 2.5L CBTA ,CBUA => [ 2.5L CBTA ,CBUA ]

Select system (above) or component ID (below) to navigate
to a location view.







1.4L CNLA



System Overview












Heated Oxygen Sensors






• Lower Oxygen sensor after three way catalytic converter -G130- /Oxygen sensor 1 after catalytic converter -GX7-

• Upper Heated oxygen sensor -G39- /Oxygen sensor 1 before catalytic converter -GX10-

• Heated oxygen sensor 2 -G108- /Oxygen sensor 2 before catalytic converter -GX11- not shown



2.0L CCTA, CBFA, BPY, CBPA and CBEA, CJAA TDI


2.0L CCTA, CBFA, BPY, CBPA





1 - Heated Oxygen Sensor (HO2S) -G39-
Integrated with Oxygen Sensor (O2S) Heater -Z19- - on some options
• CBFA shown
• Bank 1 sensor 1

3 - Heated Oxygen Sensor (HO2S) 2 -G108-
• With engine code CBFA
• Bank 1 sensor 2

4 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-
• CBFA shown
• Bank 1 sensor 3






2 - Secondary Air Injection (AIR) Solenoid Valve -N112-

3 - Secondary Air Injection Sensor 1 -G609-

12 - Secondary Air Injection (AIR) Pump Motor -V101-

2.0L CBEA, CJAA TDI





1 - Exhaust Pressure Sensor 2 -G451-
• Located near oil filler neck

8 - Heated Oxygen Sensor (HO2S) -G39-

12 - Exhaust Gas Temperature (EGT) Sensor 4 -G648-

15 - To Exhaust Flap Control Module -J883-

16 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-

17 - NOx Reduction Catalytic Converter

22 - Exhaust Gas Temperature (EGT) Sensor 2 -G448-

23 - Exhaust Gas Temperature (EGT) Sensor 3 -G495-

33 - Exhaust Pressure Sensor 1 -G450-
• Bolted to the Auxiliary Fuel Pump -V393- bracket






4 - Exhaust Flap Control Module -J883-

5 - Reduction Catalytic Converter






14 - EGR Valve 2 -N213-

17 - EGR Temperature Sensor -G98-



2.5L CBTA ,CBUA







4 - Oxygen Sensor (O2S (in Center Three Way Catalytic Converter (TWC), Bank 1 -G465-
• 2.5L CBUA and BGQ shown

9 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-
• 2.5L CBUA and BGQ shown






7 - Heated Oxygen Sensor (HO2S) -G39-
• 2.5L CBUA shown






4 - Secondary Air Injection (AIR) Solenoid Valve -N112-

6 - Secondary Air Injection Sensor 1 -G609-

12 - Secondary Air Injection (AIR) Pump Motor -V101-


1.4L CNLA Secondary air injection pump motor -V101-