[fintubi]

Chris -

Thanks for the picture - very helpful.

In my case there's more than just the white wire coming from the sender. If it were only one wire, then I could see how effective grounding of the sender to the tank would be essential to get a meaningful resistance reading at the gauge.

But my tank harness has three wires, including a black that is presumably a dedicated ground connected to the sender body. So an open circuit across the black and white wires in the sender harness suggests to me that one or both of them is not connected properly at the tank end (or that there's an open in the sender itself).

Since I don't have the tank out of the car, so far I'm just looking at the plug end of the tank harness; I'll try to see if there's a way to see the other end by taking out the trunk bulkhead panel.

Bill