Hey guys I'm having a hard time fixing a rpm problem. What happens is that when I'm driving down the road I will push the clutch in and the rpm's will drop down to 1500 and hang at that position until I come to a complete stop, then they drop down to idle. I have recently replaced the IAC. Today I replaced the TPS and it still happens. So I took the IAC off and added another piece of gasket material because I have heard that some other stangers had rpm problems with that gasket. Now it drops down to 1100 rpm's and stays. Anyone have any idea of what the problem is, please help. Thanks, guys