4.3 MPI 2010 sn# 1A635910

[Paradise pontoon]

Hello, I have a boat that buzzes and sets high engine oil pressure. Checked about all can check. I’m wounding if it’s ecu? When bring it up on diagnostics laptop oil pressure reads 55 psi without motor running. I replace oil pressure switches. I have ohm the wires, from ecu to connector on switches. I did see slight read on pink/black and blue/black. Mine has 3 wires on switch. Other wire is kinda tan or light brown. Then blue wire goes to single post oil switch.

 

[alldodge]

What software are you using, Diacom?

Wires on your motor should be Blu/Blk Sense and Blk/Pnk Ground, the other wire should be Gray +5V

Should se exactly 5V on the Gray wire