BRAT 85 1.8 engine. After retrieving from three months storage the oil pressure cage stays at zero. Prior to storage it would go up to 30 when cold and drop to 15 when warm..
with the sender disconnected gauge reads 0 lead shorted to ground gauge goes to max. Ohm meter on sending unit shows infinite with engine off. Engine on ohms stays at infinite.
With engine on I would expect some resistance to be indicated, I think. Do I have bad sending unit.Taking to shop to have mechanical check of pressure at new pump.