Earlier today I disconnected my fuel gauge to get at some cabling behind the dashboard. Upon reconnection, it read zero.
I have had this happen before and last time, as I wasn't sure how much fuel I had, I decided to fill-up. With the car full, the gauge started working again.
However, today I did the same and the gauge still says zip.
There are three terminals at the back of gauge. I have 12V and a good earth on two. The other I presume comes from the sender. What should I see on that - a voltage or a resistance (and of what values)? At the moment I have neither.
Is there a way of testing gauge itself to identify whether the problem is there or with the sender/wiring?
Also, is there a fuse associated with these? (all other gauges work OK so I suspect that's not the issue)
If relevant, the car is a 2013 Sigma-engined SuperSport.