Thanks for the info xviper,

As you say there are no other problems and this seems to be a random occurrence.

My Evo VIII also had the same symptoms, an occasional miss on a cold start and I think twice it actually just sputtered and shut off. I just let it die and then it fired back up and ran fine.

Apparently on that car the ECU does not look at the o2 sensors until they start to heat up so the amount of fuel delivered is set in the ECU and that's it. It seemed that a change in weather usually would bring this on.

Thanks again for all of the info,
Bob