2005 F90 idle problem

I have a F90 that when is cold it's runs like a champ.
After warm up runs greate on high speed only, but when is time to slow down @ about 4mph the motor start shaking and sometimes cut off. if I shut it off and start it back up the idle goes up like it's stock on choke.
most the time start up fine but it's start idleling by it self to the point that I can't put it on gear. Will the throttle position sensor be the problem?
Why only happened after 5 to 10 minutes of operation?

[boats.net]

Could be any number of things TPS, idle control valvle, any of air sensors or intake leak. Have it checked with computer diagnostic.

2005 F90 idle problem.

It's happened to be the idle control valve.
Is this something common with this make and model? Do anybody else has the same problem?