A while back I had idleing probs.A mechanic told me it was the IAC.I replaced the IAC and it worked great.Until it got to warm,the idle got crazy.The RPM would be high and going crazy and die.I chaged it again with a new.Still same thing.I thought it was a vacuume leak and everything is ok. I replaced the MAP,TPS,and IAC valve.I still have the same idle prob.
I start the engine in the morning and idles high,1200RPM,and stayes.I drive the car and it gets better as I drive the car.BUt,sometimes it stalls and while driving the RPM goes nuts.As it gets warm it gets better Idle.

Can anybody help?Please?