Somebody already saw something like this?




It fluctuate when i give gas, but goes lower than 0 when idling and stopped

 

I had the same issue for a while. When I replaced my tranny. The ground wire for the oil pressure sensor broke. from the looks it had been bad for a while. I would suggest checking the ground on the sensor.

 

Yes, I had it happen from maxing out the needle in the high area and the shaft spun in the needle.
This was from an internally shorted oil pressure sender- never had it happen running 120psi oil pressure on my race regulator.

Replaced sender, took gauge cluster apart and put the needle back on 0 and no more problems.