Exhaust System Overview

Engine Management System

Exhaust System Overview


• 2.0L CCTA / CBFA => [ 2.0L CCTA / CBFA ]

• 2.0L CRZA => [ 2.0L CRZA ]

• 2.0L CJAA TDI => [ 2.0L CJAA TDI ]

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



2.0L CCTA / CBFA







1 - Heated Oxygen Sensor (HO2S) -G39-
Integrated with Oxygen Sensor (O2S) Heater -Z19- - on some options
• Bank 1 sensor 1
• 2.0L CJAA TDI location
• 2.5L CBTA and CBUA location

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-
• Bank 1 sensor 3
• 2.0L CJAA TDI location
• 2.5L CBTA and CBUA location



2.0L CRZA







2 - Heated oxygen sensor -G39-

4 - Oxygen sensor after three way catalytic converter -G130-

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5 - Exhaust door valve 1 -N321-
Located in the left rear wheel arch.


2.0L CJAA TDI







8 - Heated Oxygen Sensor (HO2S) -G39-
• 2.0L CJAA TDI shown
• 2.5L CBTA and CBUA location

16 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-
• 2.0L CJAA TDI shown
• 2.5L CBTA and CBUA location



2.5L CBTA / CBUA





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

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

2.5L CBTA / CBUA continued





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