Guage testing and adjustments

A few ohms in wire is not going to affect much, unless there is "a few more" ohms at the connections---the sender (and don't forget ground, fuel), the kick panel connector (fuel gauge), the bulkhead connector (oil and temp) the cluster harness connector --including possible bad PC board pins, the IVR CONTACT FINGERS IN THE CLUSTER (solder jumpers across), and the nut connectors at the gauges to the PC board.

Also don't forget cluster ground, which must be "same as battery"