Hey guys, just bought a 1999 Civic Ex(First Honda ever). It has the D16Y8 with a 5 speed with 156xxx miles. So it has this issue with the idle. When I turn it on(Mostly happens on cold starts but sometimes happens when warm) it wants to die but catches itself before dying. Also will sit at 2k+ when driving if I let off the throttle and also when pressing in the clutch. Eventually it'll come back down. Haven't had time to take a look under the hood but curious and hoping you guys can maybe point me in the right direction? No CEL, all stock. I'm thinking I'll look at the vacuum lines and start there, any other suggestions? Thanks guys!