my exhaust took some nasty rocks in the middle of the road now my oil pressure has dropped from the normal 45-60 to 15-30 is it the sensor?? when the oil pressure drops it can go to almost 0. it just runs like crap when the oil pressure starts dropping

 

i would take the sender out and verify your oil pressure with a mechanical gauge to see if the sender is bad or if you really have bad oil pressure. that would be my first step in checking it out