replace oil pressure switch, with an oil pressure gauge?

[ski.dive]

can i take off my oil pressure switch and replace it with an oil pressure gauge sending unit& gauge ? [ stock 4cyl.vega motor]

by taking off the oil pressure switch, will the fuel pump work?

[spencerforhire]

The OEM oil pressure switch is there for safety; you could jump the pink and blue wires together and the fuel pump would run whenever the key is on, but I don't recommend it. If you want a gauge, just install a 1/8" pipe thread tee fitting and have both.

[cjbiagi]

I agree with Spence, the oil pressure switch is a safety measure to make sure the fuel pump only runs while the engine is running (oil pressure). In the event of a accident you don"t want to chance the fuel pump running while the engine is off or fuel lines severed etc. This is not a problem on cars with mechanical pumps as they stop when the engine stops as well. I did exactly what Spence suggested and installed a T fitting along with the oil pressure switch.