Oil pressure circuit

[anthony714]

2018 yamaha 250 sho oil pressure signal. Trying to run an analog guage. I cant fit a sending unit in there. I have the 4 pin harness running up front for my trim guage and nmea..is there a,way too tip a wire 4 a signal to them guage. My depth finder shows oil pressure thru nmea

 

[boscoe]

If your depth finder indicates oil pressure why the need for another oil pressure gauge?

Some have Teed into the engine oil pressure port to either run an oil pressure hose to a mechanical oil pressure gauge while others have Teed into the engine oil pressure port to run a hose to an oil pressure sender. Then from the sender to an electrical oil pressure gauge.