i have a 1983.5 vanagon i recently went on a camping trip and everything was fine till i got back to town.  when i would hit a light and be stopped my oil pressure light would flicker.  it will go out as soon as i hit the gas a bit or start driving.  i do have a new oil sensor in there and i do have good oil level...  so what does this mean?  i do have a new o2 sensor and other than that the engine sounds and runs great.