Honda question about idle surge

[x1genx]

well it could be a couple of things...check the iac (idle air control valve)...it may have a map sensor issue also. If the cars never been messed with you wouldnt have to worry about fuel map issues...or maybe it could be a valve timing issue dependin on the motor sohc vtecs. Just what I can think of off the top of my head but your light years smarter than me but if you missed checkin that stuff start there.