If your vehicle runs worse on less fuel pressure I would suspect a clog. I
don't know if Vanagon gas tanks are the same but its fairly common for
earlier VWs to come up with these symptoms and it turns out that the metal
sock in the fuel tank that is supposed to prevent crud from getting into
the fuel line has crumbled into bits. The vehicle will run fairly well for
awhile until crud gets sucked over the outlet hole. As soon as the engine
stops the suction goes away and the crud floats away until the next time
you try to drive it.

Larry
sonofed@karmannghia.org
www.ghiatwins.homestead.com
 O o\ /o O

> ------------------------------
>
> Date:    Mon, 4 Oct 2004 22:50:52 -0600
> From:    Joy Hecht <jhecht@ALUM.MIT.EDU>
> Subject: update - Rocky's results - was Westy Karma, was stuck in Custer
>
> - swapped my fuel pump for another fuel pump.  Fuel pressure dropped to 15.
> Didn't even try driving.
>
> - swapped for a second alternate fuel pump.  Fuel pressure went up to 22.
> Tried driving, no power at all.
>
> - checked that hoses from fuel pump to gas tank were clear.  They were.
> Went driving (with second alternate fuel pump), fuel pressure back up to 40
> and black smoke, no changes from the original situation.