Originally Posted by SouthArk370Z

You only have different tuning maps if you have a tune (and not all tunes have maps) - it's not a factory option.

Beg/borrow/steal an OBD scanner and see if there are any error codes (DTCs) set. The car is pretty good at diagnosing itself. Record any DTCs and then clear them using the scanner.

If the scanner doesn't point you in the right direction, give us a better description of what going on (MT or AT, any mods, other problems/lights, &c) and someone should be able to help.

Edit: If the car thinks the brake pedal is pressed, it will limit power/RPM. Check the brake pedal switches (see FSM).