I'm at work, 30 miles from home. At lunch I drove the car. Very little power, Stepped on the accelerator pedal all the way and it just crawled, but finally worked it's way up to speed. Gradually, it got better. Today is a hot day here, probably 80. After lunch, I drove back to work, and it had normal power. The ICE didn't shut off once on the way to or back from lunch.
Anybody care to guess???
This seems to be a weird one.