Cyclinder periodically deactivates and activates while driving

invalid@example.com (johnwheez), johnwheez
Wed, 25 Oct 2006 23:28:42 +0000

Hello all,

I have an E36 1995 M3, 160,000 Miles of fun.

If i have a drive of about 40 minutes or more, my check engine light comes on and my car feels as if it lost 1 cylinder. I took the car in to the mechanic and he confirned my suspicion because the computer error was "Check cyclinder 4"...I took it to a few mechanics and each told me the computer was reporting a problem with cylinder 4.

What is strange is that the problem goes away..sometimes while i am driving, the engine will...

Cyclinder periodically deactivates and activates while driving