My wife was driving this week and the car went into limp mode. Start up from a stop light no power.The car was fully warmed up.The idle was smooth. She pulled over turned the car off. Restarted and it was fine. I drove yesterday ,and could not duplicate the problem. The car had transmission service and leak fixed last summer. I had the Eurocharged sc pulley and tune for several weeks now. What should I look for? The cps problems seem to have rough idle associated with them could it still be this? 43000 miles on the clock. Thanks