my 2010 does this too. I took it to the dealer about the TSB and no dice... it still does it! If I just push and release the clutch 2 times the idle drops to normal at a stop and when it hangs at a coast I push and release the clutch and its good as new. I guess I am just used to it now so it doesnt bother me anymore?

 

^^^^^

So did you get the FSB? Did the dealer do the reprogramming of the engine ECU?

 

This is normal Evo X behavior. There are massive threads here that have discussed this issue far and wide.

Many people will just have to live with it and yes, it is one of the most annoying features of the Evo X.