Rockin! My learning curve is finally starting to go upwards I think. I got Easytherm to work on the laptop last night, and in the process of mis-understanding Kenny a few times, I managed to screw up my firmware again lastnight while messing around trying to send my easytherm files to the controller. I ended up wiping the chip and sending it a ! and that's it. It was kinda funny because I then realized that I did something wrong, and tried to open megatune and upload the info from the controller, and it said something like: "Expected 24s9 something, Received !" So, I guess I replaced the firmware with an exclaimation mark! Kinda funny. Well, I got the correct firmware loaded back in place, and then ran EasyTherm again and used the numbers Kenny gave me, and compiled and loaded that into the controller. Now the car starts just fine, but the coolant temps are still way off. Once warmed up, and with the car idling for a while, the CTS only reads around 105-110*, while the IAT is reading around 175*. I can rev the engine and IAT drops down pretty quick, so I am pretty sure that one is accurate. I tried running EasyTherm again, and made up some different numbers to try and trick MS, and it didn't seem to change things much. I suppose I could have a bad sensor (brand new), or I could have a bad ground or something, which I will check tonight. Is there anything else that I might be missing?