My friend ran into the same problem.
Pulle the main fuse(underhood) and let it sit for 5-10 minutes, turn the ley a few times to be sure all the power is out of the system.
Reinstall said fuse and try her again.
I think it was because his evu was an auto, and it went into a torque convertor lockup mode and didnt wanna rev the engine past 3500.
Good luck, lemme know if it helps.