Our 0.3 bar pressure gauge is bad. We drove about 200 miles with the oil pressure indicator light blinking and getting progressively worse but not a peep out oil pressure warning buzzer. I made sure the buzzer was still operating by pulling apart the electrical connector where the pressure switch leads tie into the wiring harness, revved the engine to 2000+ and bzzzzz. Then I made a short jumper with 1/4" spade connectors and connected the 0.9 bar switch back into the circuit. This kept the oil light from flickering all the way back home. I felt safe doing this assuming that the buzzer and oil light would warn me while driving down the highway above 2000 RPM. This assumes that I don't have a massive failure of the oil cooler or filter that blocks all flow to the engine bearing. My question is, if I can operate the vehicle without the 0.3 bar pressure switch connected into the circuit, why can't I just replace that pressure switch with a sender? Is a sender without an integrated pressure switch small enough to fit in where the pressure switch is currently located? Assuming I pay at least as much attention to the gauge as I do to the red idiot light, am I putting our engine at risk by doing something like this? Thanks, Tom Moritz
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