Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
Subject:Re: 2.1 WBX Warm Start Troubles
From:David Beierl
Date:Thu, 17 Nov 2016 21:08:16 -0500

At 20:36 11/17/2016, Michael Magnani wrote:
>Could my fuel pressure regulator be the source of my low fuel pressure?

Your fuel pressure isn't low, your pressure regulator is working
correctly.  However if you quoted the figures correctly, you have low
vacuum (high manifold absolute pressure) at idle.  According to
Bentley p. 24.55, at idle you should be seeing around 29 psi on the
gauge, which would correspond to about fourteen inches of vacuum in
the manifold, but you're only seeing about seven inches of vacuum.

Yrs,
d