An 80 degree stat is about 176F and on the ragged edge of faulting the car below 80 F degrees ambient driving. I had a 170 stat and a 180 STANT stat that I made up and posted. The 170 had to go away cause the computer is too sensitive to it and doing resets of the ECM has consequences.

If you reset your ECM you will fail the OBDII engine emission test here in VA, as there are profiles that take up to 100 miles of operation to set after the readings are cleared. Dont ask me how I know this.

Woody