k, well since the PI headswap you can only use 1 temp sensor, so i used the black one and it worked just fine for a few months and the sensor cracked from a wrench hitting it and stopped working, now I've replaced the sensor and the temp guage moves but is WAY off, it is way below where it should be, and even when it gets hot it doesn't even go to the C on the guage... wtf??

 

Ground which wire out, just either of the 2 that go to the temp sensor?

 

your better off getting an autometer guage. better to have a temp guage that tells you the temp and not "normal".

 

You need to hook the temperature sensor for the computer back up. That's what the second of the two is for.

 

theres no bung to put the second one in, but i dont understand why it worked before the plastic broke..

 

Drill and tap the waterneck housing. That's the easiest place I've found to put it.

 

thanks man, I'm gonna try that tomorrow..