Thanks for the response.
So that is the problem I’m having. The tests I’ve done on the fuel system show the fuel gauge, IVR, sending unit and ground are all good. Wherein does the problem lie? Is there a separate ground on the rally dash that could be missing?
I did not test the oil pressure unit other than temporary grounding to see if the gauge needle responded. (No movement)
The voltage test on the IVR at the fuel sender connector was done with a power pro ( alternated positive negative) and separately by digital multimeter. This produced a broad range of voltages at various intervals but nothing that looked like consistent intervals.
Is it possible for the IVR to be partially functional ( enough for temp gauge but not consistent enough for fuel and oil pressure-both of those aftermarket items)
