Jed ,

I have a 1983 air cool but I think your problem is the same as mine.
My oil pressure�  light is coupled with an oil pressure gauge with an
alarm so I am annoyingly�  aware of any low oil pressure.
On a hot day with high oil temp , the oil lost its viscosity which�
lower the oil pressure. when you stop1, the oil pressure is too low and
trigger your light. When you accelerate , you build up oil pressure and
that's Okay , that's when you idle or go low low speed that you have
problem.

You need to cool your oil by adding a secondary oil cooler , you can
also use synthetic oil which may help a little
Anything which will have your oil temp down should fix that problem.

Chris

On 10/01/2017 11:19 AM, jed batchelder wrote:
> 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.