I hope I am wrong but I doubt just changing the coolant cured you of over heating. Keep drilling Doc
Nice job troubleshooting the wiring issue they can be tough.
Well the coolant may have been more water than coolant before I flushed it today. When we did the break in we only used water in the engine (just in case any leaks). Then when i started fine tuning the trans I didnt do a perfect 50/50 split of coolant/water ratio. So today I fixed that.
It was also only 90 degrees outside tonight while driving, I kept my speeds up, and didn't stop as much. So probably a conglomerate of things contributing to having a cooler engine tonight.