High idle - P1506
This is the latest in a continuing saga of trying to get my 2000 ZTS (DOHC) ready to sell. Started with bad timing belt. Let it sit for a few months, replaced it. Battery and fuel pump bad, replaced them. Now a high idle w/ a P1506. So I'm thinking with all the engine jacking up/down to replace the belt must have pulled a hose loose. I've looked pretty thoroughly and can't find/hear anything. Throttle/cruise cables are fine. Idle speed varies, I think it's mostly around 2K.
Is it likely the IAC has gone bad just from sitting? I can't see how the gasket would just start leaking in that amount of time.
Any suggestions greatly appreciated, would like to get this sold as a well running rig as it's in otherwise fine shape.