My 2002 Gt has an issue with overheating. I charged the a/c and this is when it all started. I was running the a/c and then the car overheated. My Mishimoto fan for the radiator is wired to the low side so I thought this might be the issue (didn't know what to do other than not use a/c). Next I had a complete exhaust installed in the car and no issues on the 1/2 hour drive home on the way back from the shop. I drove it all day the next day with no issues until I was at idle in the driveway, the RPMs went down real quick and the temp started going out the roof, no fan going??? So I let it cool down and then started up again the fan came on so I disregarded it. I next got an SCT tuner and put a tune to it, now the fan comes on for a few seconds and shuts off and its eventually overheating again cause of this. I just have no clue what to do. I got to get this fixed quick before I do serious damage I have overheated like 3 times already. I know this is the best and most knowlegeable group there is. SOMEONE PLEASE HELP!!!!!