Overview..
I have a ghost CEL I get almost everday. I plug my laptop into my blue box and there is nothing there.
It's a random thing, but I can watch my egt gauge and the temp will drop from 600+ to around 500C and the car will start to miss. By comparison, the car idles around 400C. Giving it gas doesn't help and it'll run rough for a few minutes and usually clears up. It's an everday occurence with the ghost CEL, running rough, etc. The car has just over 100K on the stock distributer minus a new cap/rotor about 10K ago. Any ideas?

The car/motor/turbo has run absolutely wonderful up until that point. thx.