Why does MY BMW 98 528i rough idle?
Why does MY BMW 98 528i rough idle? Had same issue on my 98 528i. Rough idle on cold start then one day it just would not start. Replaced the MAF and car started but the rough idle remained at startup. De-carbed the throttle body and ICV, good for a day then by the second day rough idle again. How is the idle on a BMW M3? >Disconnected MAF and engine ran great, so though MAF bad, so bought salvage yd MAF for $150 and things fine, at first, then CEL. At this point with CEL on, idles fine, and...