I'm having a bit of and issue with my 2000 gti. If the car is in 1st or 2nd in low revs (1500-2000rpm) and I press hard on the throttle the turbo goes nuts and I get a rush of boost untill about 3000rpm when it all settles down to regular boost levels. I'm pretty sure it's not going into limp mode as the regular power is still available. I'm thinking it may be dues to a faulty N75 valve or MAF sensor but I don't have easy access to a VAGCOM so I can't do any diagnostics. BTW the only mods I have to the car is a sports muffler and an APR R1 DV. The car was only bought about 2 months ago so it's still under warrenty, I am bringing it back to the dealer next week to get him to look at it but any insight from the vast pool of expertise on this forum would be greatly appreciated, cheers