I gotta 1990 ef civic so i basically just changed my starter,alternator and swapp in after market headers so my car was running good today but when i came home to chill for a lil i went to start it up maybe an hour or two later and it wont start but it starts when i jump it i did system check and everything if fine so what could be the problem any feed back would be useful good or bad thanks

 

check your starter relay. its located by the hood release handle underneath your dash. if you got the honda manual i would check that first to find a image of it .

 

no manual but that could be the [problem] due to me hooking up beat yesterday also so i will check that out in the morning thanks for the feedback