Okay Bill, I've found both "power stages" could those be causing the "hard knocking" sound I'm hearing. Also the engine sounds as if there is a lot of "back" pressure. Not just the knocking sound but a, lack of a better term, stuffed up. There is exhaust coming out but ...

What and where are the power stages? Where is the idle speed motor? When it comes to old cars I know how to fix them but these new ones, because of all the computers they are rough to say the least. LOL. I took the throttle body off then took a towel and dried out the manifold. Cranked engine, this ...

I have a 1997 960 which has ran well until yesterday. My son tried to drive through a deep and long "flash flood." The car died, so I pulled it home. This morning (5/3/2010) I took the igniters off, took the plugs out to make sure there was no water in the cylinders (turned over the engine...