oil psi guage not reding

[maitai69691]

the guage stoped working so i thought it was the sending unit cause when i dicon.. the wire on the unit and ground it out the guage moves just a little and holds for a sec then goes down. so i replaced tha tunit still not reading any thing theres oil in the car..

 

[Nick M]

First, you need a mechanical gauge to see where you really are. If you have oil pressure, but the gauge reads zero, you have a sending problem, wiring, or the gauge.