Hello,

I own an 2002 RS4, one day everything was great, and tomorrow no boost, when I vagged it it gave me:

Air Intake Switch over valve - short circuit n335.

I've cleared it and it came back again,

I read the errors with another scanner and found another error:

Secondary air pump relay.

Can anyone tell me where can I find this relay ? and also, what can be my problem, car won't boost, stays at 0 PSI, and turbo's are good and wastegates are responding... no problem with BOV's...

Thanks in advance,

Avi.