Hi Guys,

I have a 2009 Audi A3 1.9TDI, Engine code BLS.

My car struggles to start, and when it does it misfires and smokes from the exhaust. I had a diagnostic tool plugged into it and it gave me the following fault:

P0407 - Exhaust recirc. position sensor, signal too low.

I have replaced the EGR itself an it has made no difference.

My next thing to check would be wiring to the EGR and the EGR pressure solenoid valve.

Any help would be greatly appreciated.

Thanks.

Rob