I finally got her running, just need to work out a few bugs.

I have the stock gauges. I checked it the other day with hptuners and it was maybe off by 5 degrees.

Sorry for the long hiatus. I finally got the truck back from the exhaust shop. What a bunch of morons at that place...

I lathed down my old sender and popped it in the passenger head. It's working, but it only goes up to 150*F also.

If the system still has an air pocket in it, wouldn't it get a lot hotter than 150*F?

I'm just going to wire up my obd2 plug and find out WTF is going on. My obd2 plug needs a ground, data, and a power. Should I wire a 12v constant or 12v keyed power to it?

http://lt1swap.com/fuseblock_obd2port.html

constant