skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

Removing and installing parts of the secondary air system > < Secondary air system (only for engines AQY, AZH, AZJ)
Operation
Operation
The secondary air injection system blows air behind the escape valves during a cold start. This enriches the exhaust gas with oxygen, initiates a post-combustion and thus shortens the heating-up phase of the catalytic converter. The actuation of the combination valve and the secondary air pump motor -V101- is performed by the Motronic control unit -J 220- through the secondary air pump relay -J 299-.
   

Removing and installing parts of the secondary air system > < Secondary air system (only for engines AQY, AZH, AZJ)