joseaudi

I got my Neuspeed chip 1 month ago, took it to the dealer. Got it back and I thought they flashed my ECU, cause it didn't drive the same. After much research and talking to Anthony from Greedspeed, I'm now convinced that I'm still chipped, but seem to be losing boost somewhere. I have a new air leak noise under heavy throttle. Took it to the dealer and they played it off as the "extra" noise from the K&N I have. Put the stock filter back in and same damn noise. Gonna take it back to the dealer and see what they say about it now. I also searched N75 valve and wastegate failures. What do you guys think. Pretty bummed that my car doesn't drive like it used to. I can definitely hear the turbo spool up but the car drives like stock or a tad bit bitter. Nothing noticable like a chipped car. Also no codes, I figured since the car is producing more boost, but some of it is leaking, the car wouldn't be able to detect a loss.

QuattroRocket

They can run in the car and data log block 115 to see if there is a boost leak real fast.

PKBlu::E30 Hunt

with an APR chip. I had APR check it out at waterfest. They did use a VAG-COM on the car, but no codes came up. The APR tech was 75% sure the problem was my Forge Diverter valve. I have yet to replace the valve to see if it is indeed the problem. But I am having the same problem as you.

Check me informed how it works out for you, I'm very interested.

joseaudi

I switched out the DV valve already and nothing noise still there.