Have a Ranger xp 900 EFI that will start and idle but once gas pedal pushed there is no response. Code 656 13 has come up. Have researched and have come up with very little. Gas pedal replaced is the only thing I have seen as a possible fix. Connection on pedal looks clean but am having a time following where it goes from pedal. Do I need to remove part of dash? Am looking to see if wires have been chewed and not sure their route?