i have a CEL on after changing my dead battery. The idle is very rough, it studders between 1and 2k rpms, also sounds like a rattle in the exhaust after i get it above 2k (loss of backpressure/crack in exhaust??). If u have a VAGcom can you tell me what a 50.3 would mean in a B5, thanks.

 

Do a search on Google for "Steve Hall Vag Com Locator".

 

well i took it over to a guy at a german car place, he hooked it up and the idle was off because of the battery trouble so its all goooood.