sup guys i felt my car a little sluggish and the top end, so i pulled the boost gauge off the race car and ghetto rigged it on the a4. i did numerous pulls and they all maxed out at 5 lbs. i read in other forums that stock boost is 8psi if this is incorrect please chime in thanks. the vehicle has always been service at the dealer and on time i just purchased the car 2 days ago and i am the second owner the original owner babied the car

 

Broken DV, limp mode, failed n75, etc.

Any codes?

 

what year....

 

the year is 99.5 and no codes at all it freaking sucks having boost and not feeling it fawk

 

Do a boost leak check. Could be something as easy as a hose fell off or a bad check valve.

 

5-7psi is normal for AEB.

 

5psi is safety boost.

 

Correct. 5psi on a stock tune is limp mode. When in limp the ECU just leaves the N75 wide open so the pressure goes directly to the WG actuator which happens to have a 5psi spring. If the N75 fails this will be the same result.

 

is there any way to check the DV to see if it's malfunctioning ?

 

The stock DV is plastic and not rebuild-able. I don't know that there would be any way to know that it was bad just by looking at it.

FWIW I have a spare DV if you end up needing one. Just PM me your address and I'll drop it in the mail.