Re: [T3] Pressure Regulator

["Jim Adney" <jadney@vwtype3.org>]

On 11 Jun 00, at 16:14, Steve Glavas wrote:

> Anyone have any idea how to test a fuel pressure regulator to see if it is
> working properly?  I have a VOM.

The regulator is just a mechanical device, so there is no use here 
for the VOM. You just need a pressure gauge.

> I have a "full rich" condition which came into play when I replaced the old
> one with a used one.  The old one is long gone.  Apparently the "new" one
> doesn't work.  I also have two others to try, all unknown condition.  This
> fixed the surging idling problem, but now I am at 12 US mpg at best.

At 12 mpg you have a major problem. Assuming your car is still FI, 
use your VOM to measure the system voltage at the fuse box, med rpms, 
with the engine warm. What do you measure? If it is below 13.5 V 
replace the voltage regulator. 

-
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Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
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