Originally Posted by Squishy!
It's quite possible the conversion harness has an issue but Brian's work is mint so I doubt it. Melting? No it all runs at the top of the engine then straight through the firewall. Still possible though. The gauge when working right sits really low which is odd. I've been meaning to swap in my SR5 cluster anyway so I'll start there.
Whatever's easiest. Glad to see that you took the quick and easy route eliminating the sender by simply disconnecting it. That's smart.