Emission Control Systems: Description and Operation

Emission control

Euro II Oxygen sensor closed-loop control and 3-way catalytic converter separate for both cylinder banks (RoW and Europe not including Germany)

Euro II/D4 Additional secondary air system (Germany and Taiwan)

USA LEV* Oxygen sensor closed-loop control and 3-way catalytic converter with a primary and main catalytic converter separate for both cylinder banks, secondary air system, on-board refuelling system (ORVR)

*LEV - low emission vehicle