There were some dash lights on, and codes set, but the car drove quite well. We were not looking at MPG, so I can't say what the MPG hit would have been, but many hypermilers say that they feel the IMA is not necessary?
For me, I love that electric turbo, so I want more electric rather than less.
The next time we try it, I will look more closely at the codes.
__________________
Mike
Mima Insight MT # 007 2000 5sp AC
Grid/solar charged 48V "Eboost" battery
Drop down "Ewheel" EV 5th wheel.
low price grid charger
http://www.99mpg.com/