On Wed, 25 Feb 2009 19:31:44 -0800, "Scott Daniel - Turbovans" <scottdaniel@TURBOVANS.COM> said:

> And the only two choices really are ....... put an oil pressure gauge
> on it and find out what the real oil pressure is, or try another
> sender.........that's the easier/cheaper 'test' in the short term,
> but the oil pressure gauge is the real right thing to do. Some high
> miles engines idle at zero oil pressure warmed up, not that we like
> to see that.

Not endorsing it, but Harbor Freight has an oil pressure test kit that's pretty inexpensive.  Not pro grade I'm sure but probably fine for the individual for occasional use.  Only a little more expensive than "experimenting" with a new sender.

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=98949

I bought one myself a few months ago but have not used it yet.

Allan
--
1991 Vanagon GL