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The oil sending unit on the 1994 Oldsmobile Cutlass Supreme is located on the top of the engine compartment. It is directly above the oil filter.
To get the computer codes you press the "Off" and Warm" buttons on the A/C unit at the same time.
On my 95 it is above the starter. it might be the same.
The 1996 Oldsmobile Cutlass Supreme temperature sending unit can be found on the front of the engine. The temperature sending unit will be a few inches above the thermostat housing.
Just to the drivers side of the engine next to the distributor.
Check out www.fordification.com/fuel-sending-units.htm I think you will find your answer there.
On the 3.4, directly above and to the right of the starter.
back of engine, passenger side, above oil filtre.
You need to drain excess fuel out of your gas tank. Unbolt the support straps off of the tank with a jack and small board under the tank. Drop the tank and you will see the wires for the fuel pump. That also includes a new sending unit and gasket when you replace the pump
You can test your 1997 Oldsmobile 2.4 liter engine oil pressure sending unit with a diagnostic tester. The diagnostic tester is the most reliable way to make sure your sending unit is working properly.
Most likely it is the fuel pressure sending unit. Replace complete unit. Located in the fuel tank.
It's attached to the fuel pump sending unit, inside the fuel tank.