Hello all, I just got a 2005 GTI 1.8t and I'm experiencing some CEL problems. I'm getting the code P0171: system too lean (bank1) from what I understand it is most likely my MAF or a vacuum leak right? I don't even know where to start to look for the leak because this is my first car. Can you...

I recently purchased my first vw ever. I've always wanted one. Its a 1999 gti vr6 lowered 2 inches on adjustable coils with halo projector headlights. It has 18x8.5 rays rims. And I just put on my catback magnaflow yesterday. Looooove the car so far but im not sure what I should do next? Whats...