Sender unit defective
sender unit disconnected
wiring problem dash to sender
rear dash connector problem
defective guage
Temperature coolant sensor...
No oil pressure - after checking with a manual gauge
Do you mean an oil pressure gauge? Not tach?
replace the fuel sending unit in the gas tank.
Most likely the sending unit in the tank. Start there.
Right out of the gate a 95 probe SE has 120 hp
Possible bad sensor, it is on the rear of the head. On the driver side.
check the power to gauge and the temperature sensor (tps). if no power broken wire or short to ground. if power to both areas bad gauge.
Nope 98-94 is one model. 95 starts a new design.
Yes, there is a fuse for this. It should be labeled INST.
I had that exact same problem and Im replacing my oil pump now.
Your oil pressure goes up with more throttle (higher rpm) and there is less pressure say at idle. Therefore your gauge reading will vary according to the throttle/rpm.