OK, Before I rip apart my dash I figured I'd ask. When I start the car the oil pressure reads 30psi. Usually , but not always at some point during my ride the gauge tops out (goes past the 60). Sometimes it even comes back to 30 but usually not.

Should I start by changing the sensor?

D

 

Yep - change the sending unit...

KAM

 

Hes right but keep in mind some cars have two sending units. just a thought.

 

TWO???? Where's the second one?

 

well..theres one that feeds the gauge, and theres another sending unit that feeds the computer so the fuel pump will shut off if the oil psi drops too low

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

That's not a sender, that's a pressure switch.