I have an issue with the idle on my d15B1. I have read all the items related to the "hunting idle" with Honda. I thoroughly cleaned the IAC, checked vacuum leaks and so on. The problem lies in that after startup and the engine gets up to temp everything is fine. Once I hit the accelerator the engine will not come back down to idle. It stay elevated. If I push down on the throttle to further close the throttle (Manually) it will come down to the correct idle. But once again, opening up the throttle it wont come down to idle unless I force the throttle. Could this be a throttle stop problem? or is the spring worn. I did a complete rebuild on the entire engine/intake/throttle body..etc.