I had similar happen on my I4 82 westy. Oil pressure light was dim sometimes when it was damp outside. Not all the time when raining or damp, but never when dry. I cleaned sender connections etc etc, never did fix it.

I'm thinking a spurious/transient/wayward ground path.

alistair

On 2013-03-27, at 12:43 PM, neil n wrote:

> Hey people.
> 
> Am testing new "T14" connectors I wired in so brake warning light is
> not connected.
> 
> I'm running a "Dynamic Oil Pressure "L" board. Oil light has always worked fine.
> 
> Looking here: http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind0808A&L=vanagon&P=R35161
> this may be a clue, but if someone could confirm....
> 
> Key turned to ign. on, engine off, would an UN-connected brake light
> switch cause the oil light to be dim and non functioning (not flashing
> as usual)?
> 
> Neil.
> 
> --
> Neil n
> 
> 65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp
> 
> '88 Slate Blue Westy to be named.
> 
> '81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/
> 
> Vanagon VAG Gas I4/VR Swap Google Group:
> 
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines