OMG, I'm so stupid. I was looking at the battery voltage ( H - L )instead of the engine temp on the left. It was the battery voltage that drops not the engine temp. So now with new battery, it's still low. Alternator?
I know the sensor is still good today, because the engine temp was at its max 250+ and smoke was coming out of the engine on the freeway going to work. Open up, radiator fluid everywhere. Now, I'm assuming the new statz is not working correctly. Will put the old back tomorrow.
Man, all this by reading wrong thing. urgggg!