Google oil pressure sender wire loose on 3000gt. More than likely this is your problem, and you just have to re-connect the little wire that connects the sender to the guage in yoru center cluster.
-3KVT
Probably your oil sending unit may be defective. You may have excessive bearing wear. Have it checked with an oil pressure guage to be sure. Manually screw the guage in where sending unit is.
yes they can you have to attach a fuel pressure guage between the regulator and the engine and see whut it reads!
Guage pressure is the pressure in excess of the atmospheric pressure, which is around 15 psi. Absoute pressure is the pressure relative to a vacuum. Guage pressure can be negative if you are measuring pressure in a container which has been evacuated. Absolute pressure is always positive. The different systems came about because guage pressure is easier to measure, and is often the relevant property for the task at hand anyway. As an example, consider a car tire. When measured with a common tire guage, which reads guage pressure because it is balancing forces with the atmosphere on one side, the pressure in the tire is 35 psi. Put the car in orbit in space, and the guage would be reading absolute pressure. It would read 50 psi.
If you mean "guage pressure," it is the pressure of a fluid minus the atmospheric pressure.
I used to do this for a living. The pressure guage is mounted on a testing machine (usually but not always a machine called a dead-weight tester) and the readings given by the pressure guage when known pressures are applied is noted. For example, a pressure of 300 pounds per square inch is applied and the guage reads 295 pounds per square inch when the pressure is rising, but might read 305 pounds per square inch when the pressure is falling. This difference in guage reading when pressure is rising to when pressure is falling is called hysteresis. A calibration certificate for the guage is issued showing the guage readings obtained at known pressures when pressure is rising and falling. In some cases, the guage readings may be very inaccurate and if the guage has some sort of adjustment mechanism, this may be adjusted to obtain more accurate readings.
Been there before. Connect a fuel pressure guage inline so the car will run with the guage connected. Watch the guage. If the pressure drops out it will be the fuel pump. They will work just fine until they get hot,then thet will quit. Then start working again when they cool off.
There is the blood pressure cuff which wraps around the arm and the pressure guage I believe is called a "sphygmomanometer"
Between 4-7 psi, make sure you have a psi guage, before the carb. It's always good to have, an adjustable fuel pressure regulater, before the fuel pressure guage....
Pressure guage is first to come to mind.
pirani guage can measure upto 10^-3 torr pressure but penning guage can measure beyond this
If there is no oil pressure guage inside of the truck then you will have to locate your oil pressure sending unit and remove it, which depending on the engine, should be near your distributor. Once you have located and removed you can get an oil pressure gguage for around 10 dollars at any auto parts store. You will have to make sure that you get the proper fitting to adapt the guage to your engine. Hook fitting and guage up in place of the oil sending unit. The guage should come with enough line on it to either run it inside of the vehicle to mount it, or if you are just checking the pressure one time then set the guage out of the way of the engine, start engine and check for any leaks. Oil pressure guage should give an accurate reading of pressure while running. Oil "dummy" light may or may not come on while engine is running. This can be disregarded as long as you have a good oil pressure reading at the guage. You can call any auto parts or dealership garage store to get the specified oil pressure readings for your specific engine for free. Hope this helps!!
in pressure guage and also in pump for degassing purpose