engine Oil pressure gauge reads less then“O” I changed the sensor (two new ones @ $65.00 each) and cleaned the connection and no change. When I increase the RPM the gauge moves just above “O”. I attached a pressure gauge and got readings of 60-75 PSI. Any suggestions to what’s wrong?

 

Have you tried testing/replacing the sender? On FCs, the sender is much more likely to fail than the gauge in the cluster. The testing procedure involves a test wire with a few different resistors that can be grounded to the chassis. Different resistance values result in different needle positions.

 

Thank you RotaryRocket88,
I have tried three senders two new from Mazdatrex and one original. I also grounded the the wire that connects to the sender and turned on the ignition. The gauge move to 110 mark.
I will try testing the senders next.
Thanks
Dickpet