My 1996 960 wagon with 225,000 miles started misfiring three months ago and the check engine light began flashing like a beast. Took it to my mechanic who read the code and replaced the #4 cylinder coil and plugs (coil had oil on it). Then a month later the check engine light is on again and flashing - this time it's the #1 cylinder coil that's bad. Mechanic says it's clean, however. Another month goes by and the check engine light comes on steady, but the car is misfiring like it's about to stall any second. Now it's the #6 cylinder coil. And again, the mechanic says it's clean. Just started driving it again yesterday and I'm feeling the occasional tiny misfire still... Does anyone have any clues as to what might be going on? (My worry is that once I get through replacing all 6 cylinder coils, the car will start eating the new ones as well!) Thanks.

It could be a loose/broken wire somewhere in the wiring harness?? have you tried listening feeling for a misfire when its stood idling?

M