petewon.
Whats you engine code ANB or APU. If you send me an email address i can send you a picture of the valves from elsawin and a more detailed description how to check the valve out but the description is below.
Recirculation valve for turbocharger -N249 and secondary air inlet valve -N112
Notes:
◆ The secondary inlet valve is only installed in vehicles with engine code ANB.
The mechanical air recirculation valve is in front of the exhaust turbocharger. It is opened by vacuum pressure with overrun, idling and partial load. This reduces the present boost pressure in front of throttle valve. The turbocharger is thus kept to a high speed.
◆ With engine codes ANB and APU the mechanical air recirculation valve is controlled via the recirculation valve for turbocharger -N249.
◆ Check the air recirculation valve if the engine is not producing full power, or jerking when the throttle is opened and closed.