1998 Audi A4 Q&A
1998 Audi A4 Question: Put in drive car surges. Never cuts off just surges.
I think some kind of animal made a home in your exhaust system.take out one of the o2 sensors closest to the engine then drive it.this will most likely turn on the check engine light and it will be loud but it will confirm or rule out any exhaust restriction - joelburke26
AIR IN LINES - globalhelper