Oil pressure sensor failure symptoms online Oil Pressure Low Stop Engine Warning Light (But Oil Is Full) What to Do? Essential Guide: Decoding Your Car's Oil Pressure Warning Light Warning pressure. It is common knowledge the OEM oil pressure sensor triggers extremely late. If you see the oil light come on, its already too late, and damage has already occurred to your engine from the lack of oil. Our oil sensor activates the cars oil light earlier than OEM, giiving you much needed time to check oil levels possibly preventing catastrophic engine damage. Fits any B K F H D Series Honda engine. Note: Conversion to ring terminal connector is required forB D H K series engine. F20c F22c engines plug and play.