Engine misfires over 3k RPMs after timing belt change.

Note: Hondas require valve lash adjustment when timing belts are done. Ckp sensor codes can be caused by a bad cam sensor as well. Supposing engine ran fine prior to belt change i can only assume your timing is off. Which is not good. missfires occur because computer can not control your variable cam accordingly. Im not sure which engine u gave but most hondas are interference. Bad timing = bent valves Good luck

Thanks so much, will keep digging.