The odyssey starts smooth, idles at 2400. I've checked position of throttle position sensor, I've replaced tps 3 times, I've changed entirely idle air control valve, replaced map sensor, pcv valve, intake gaskets, valve cover gaskets, and spark plugs. It still does it. It didn't start doing this until I fixed oil leaks and replaced intake and valve cover gaskets.
I've checked fuel trim they are between 5 and 0.
any ideas what to check next.

 

Your intake gaskets is not installed correctly.

 

I will check it out first thing in am

 

Side gaskets on intake and throttle body gasket were so thin. I replaced with gaskets paper at advance auto. Fixed the issue.

 

It must have been sucking a lot of air through there.