99 Passat 1.8t always misfires 3 of 4 cyl's
 

Hey!

My wife was driving the car and it all of a sudden started misfiring bad enough it was undrivable.

I will start by telling you the work I have done so far and I still haven't solved the problem. I did a valve cover gasket and plugs after I realized oil had seeped out of the grommets and all the way through the spark plug threads (it ran perfect for 2 miles and started misfiring again. I then did all 4 coil packs and plugs again because 3 of them were covered in carbon ofter only driving 5 miles most)

I am getting 2, 3 and 4 cylinder misfires on the diagnostic.

I did a search of the forum and found problems with some similarities. Old threads and no real answers (my situation is a little different anyhow)

I'm in this problem for about $500 and hope someone has had similar or suggestions.

The car still runs and the misfire is less once its past 2300RPM or so.

Any suggestions would be greatly appreciated!

-Jason

it was my ignition coil control unit

http://www.partsgeek.com/gbproducts/...ek+Google+Base

Goodluck if you have the same problem and be sure its not something else and don't let a dealership rip you 600 for this 140$ part!

good you found the problem :)