Sounds like the throttle bodies just aren't sync'd.
What about the front/rear manifold pressure sensors? What do they read when the ign is on and the engine is not running? How does that compare to the Atmos Pressure sensor? How about when the engine is running, is one manifold sensor way off?
Which map? Remind us of the year 07-08, or later?
Have you tried down loading the map again, with the 15 min idle? May just have a bad down load.
"Dad, can I get a motorcycle when I grow up?"
"Son, you can't do both"