Thank you for the replies. Yes it is the 2L and it has done this last winter. It did this today around noon while heading to lunch and the temperature outside was in the 50s. It will high idle for about 10 seconds then settles down to the normal idle.
The dash temperature gauge seems to read normal but I don’t have a scan tool to see what the exact reading is. When i warms up, it goes to the mid point as normal. Error at the low end?