Mine reads cold 99% of the time. And seems to move even farther left sometimes. First, I changed the sender. No difference. Then I tohught since it was moving farther left sometimes, it might be reversed polarity, so I tried with the wires swapped. No difference. It also occasionally pegs hot suddenly while running (which freaked me out the first time). I've replaced the wire to the sender, but not the hot side. Should I do that or go straight to the guage?
