Originally Posted by
NickelSpeedShop
The sensor looks new, just slight discoloration on the stainless due to heat but nothing that alarms me.
The engine is a new GM unit with maybe 500 miles on it that has only been opened up to install a cam. It does not, to my knowledge, burn any oil or use any coolant.
The ground for the controller goes directly to the dash support, I have hooked it up with a jumper directly to the negative battery terminal but that made no difference so I determined that my under dash ground was sufficient. Power is through a 10a fuse to an ignition hot terminal on the under dash distribution block. The only reason I installed the switch was so the heater would not run while the truck is sitting without the engine running but i don?t even get a chance to test its function because the newest sensor failed on the first run. I have to be messing something up because there?s no way I have gotten 3 bad sensors in a row.