I have had my 03 for a couple of weeks now and my temp gauge barely moves off of the C but if i let it idle for little while the temp will move up to just below the half way point and when i get to driving it will eventually go back down to just above C, do i have a problem with my gauge or is this normal or what? The mods to the car that i know of is a pulley not sure what size and tune (sct tuner). Also the temps here have been in 30's and 40's not sure if that makes a difference.