just a heads up, when you disconnect the battery, the radio may ask for a reset code. if you purchased the car new, it will be in your little booklet about 3' X 5" 3-5 pages with your code. if you don't have this book, take your current registration or pink, your drivers licenses to a honda dealership and they will give you or set the radio for you ( stock radio)

Something to do with the TDC sensor or cam sensor
Would imagine that it is possible that is the problem
IDK.

Wish you good luck.