Right up date, put a new sensor on there today and it blew up so i took the plug off but the gauge reads full?! (this is with the ignition on but engine off, iff i turn the next notch to start the engine the gauge goes dead) so i had a look in the haynes manual to look for a wire diagram, only to find it doesnt show mine in there!? I have 2 wires from my temp sender, 1 red+white and 1 black+blue, which one does what?