u/Critical_Judge7530

Hello all, about 2 months ago I did a drain and flush myself on my wife's kia. Seeing the issues reported with stats and sensors and since I had the coolant flushed I figured I would replace both. Yesterday I noticed a computer code for P2181. After running for 12 minutes in a 62 degree garage it only got up to the first tick. Do you think it's a faulty thermostat?

Thanks in advance.