I have a 2002 fuel injected road king. The check engine light came on while riding followed by high idle while I'm neutral or clutch pulled in. The bike runs great other than the 4000 rpm while in neutral. I replaced the speed sensor and tried several times to clear the codes with no results. Please help

 

2002? Not 2012? Just checking if you made a typo. (simple explanation if it was a 2012)

 

It would also help to know what the codes are.