I got it back from the dealer, they replaced the MAP sensor. That has not fixed it, it doesn't seem to have much of a problem until after it heats up, with one exception.
When the engine is cold (and I am being gentle with it) the engine warning came on once. A few minutes later it completely stalled, even the instrument panel went out.
Later after a while of hard driving it started acting up again. random engine warnings, rough idle hard to get back to speed.
BUT, if I remove the key and restart it runs fine for about 10 min.
Could this be an ECM issue?
I find it surprising that it could be a vacuum issue that can clear from a restart?
After the check engine alarm comes on, when it returns to idles it is very rough. When I try to accelerate, it reminds me of a flooded engine, that takes some time to get RPMs back then runs great once clear. If it wasn't for the rough idle I would almost think the throttle system was broken.