Oil light intermidiate

Hello everyone, first time here
Oil light comes on after engine warms up (???) what's easier to replace oil pump or oil sensor and is there and easier way to find the exact problem? :banghead:

Welcome to the forum. Please include model year and engine size next time. Make sure the oil level is good. Connect a direct pressure gauge to see what pressure the pump is putting out. If the pressure is good then change the sensor. If you can't get a gauge somehow, check the wiring to the sensor then change the sensor. On the 3.3 and 3.8 ltr engine it's to the left of the oil filter.

I would check the oil pickup screen first before doing the pump to make sure that is not gunked up and restricting flow .