Alright, so this is my brothers car. 2002 B6 A4 1.8t Quattro Avant 5spd. its a non sunroof model, originally a Canadian car, imported to the US in 2003. it has 110k on it. all big maintenance bits are done and up to date.
Earlier this week he was out sliding around in parking lots in Upstate NY due to all of the lake effect snow we get. Spun out and the car began to idle erratically. turned it off, turned it back on and it had a real rough idle.
brought it home, scanned the car and 7 DTC's showed up:
with these codes came the EPC light too.
Boost leak test checked out, swapped mafs still running rough, refuses to start with the maf plugged in. runs perfectly normal when driving until around 3k rpm it starts to throttle cut and back fire. I currently live in Akron Ohio so i dont have the car in front of me to tinker with AND i brought VAGCOM to school with me but im kind of running out of ideas for him.
Any idea helps, i need a fresh ides/view on this