I have a 1999 Audi a4 1.8t .It just recently started to spit and sputter when I acclerate really hard.Once its hits about 10lbs of boost it clears up,but until then it s real boggy.

Its has roughly 125,000 miles on her...


Any ideas? I heard you guys know everything...

 

Do you have a CEL? Even if not, get your ecu scanned at autozone or advance and post the fault codes up if there are any. If you've never had your ecu scanned, record the codes, clear them from the ecu, drive around for a week or so and then rescan and post em. There could be old and irrelevant codes stored from a previous time.