I had the oil/filter changed on my 22 hp briggs -twin. The low oil message shuts down oil but it's full. Disconnected sensor wire and grounded it no change. Any help appreciated
You have a miss understanding of how the low oil pressure system works. When the sensor detects low pressure or no oil it grounds the wire which kills the ignition system. So all you are doing is killing the ignition system by grounding the wire.