stuck in idle

[dis2]

My 2001 Discovery 2 is missing when it warms up. Dealership says its carboned up. so I used seafoam in a vacume line to clean the carbon. when I tried to push gas peddle it is stuck in idle. As if its in limp mode any ideas on how to reset. thanks

 

[joey]

I would start by cleaning all the linkage, then I would clean the butterfly (intake). I would also clean the IAC and TPS.