I just put a new vp on my truck and after doing so my oil pressure comes and goes as. I can start the truck and i will work fine the i will put it in gear go down the road and it will go to 0 psi until the next time i take off from a stop. I have checked the sensor under the vp and it seems to be good. I am going to order a new sensor, but i was wondering if anyone else has had this problem and what they did to fix it.