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Date:         Sun, 24 Jan 2010 12:25:06 -0600
Reply-To:     Max Wellhouse <dimwittedmoose@CFU.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Max Wellhouse <dimwittedmoose@CFU.NET>
Subject:      Re: fuel pump problem?
Comments: To: Jake de Villiers <crescentbeachguitar@GMAIL.COM>
In-Reply-To:  <71d9cdf91001240859i5aec0cb9ica75e1db5ec70d7a@mail.gmail.co m>
Content-Type: text/plain; charset="us-ascii"; format=flowed

It's also fairly easy to rig a VDO oil pressure sender unit to the fuel line and use your VDO aftermarket oil pressure gauge you installed(everybody should have one!) as a twofer. By rigging a toggle switch between the OP and FP wires running to the gauge, you can get both OP and FP from one gauge. Let's face it, 99% of the time you're needing the OP info, but if the motor starts crapping out, You simply flip the switch to the FP sending wire and see if you're running between 29 and 36psi. The lower the manifold vacuum(ie foot to the floor) the higher the reading should be. Higher the manifold vacuum(coasting down a hill with foot off the pedal), the lower the reading will be. Helps to let you know when you're running out of gas, but that's not an ideal situation for most folks to be in.

Good luck with it all.

DM&FS

At 10:59 AM 1/24/2010, Jake de Villiers wrote: >There is a spare fitting on the fuel pressure regulator that's there to take >a gauge. > >Works dandy. I think Ken Lewis has one permanently mounted there. > >http://www.neksiwel.20m.com/photo2.html > >On Sun, Jan 24, 2010 at 7:47 AM, Mark <mbrush@gmail.com> wrote: > > > Thanks Scott - I hear the fuel pump clicking on and off - so i think it's > > definitely electrical. Previously, I had to reground the wire on the left > > of the engine block (the bolt where it was grounded broke off), so I wonder > > if my new ground wire is not working OR it's just a bad fuel pump relay. > > Will try replacing that to see if it remedies the problem. Just curious - > > where's the best place to install a fuel pressure gauge? > > > > On Sat, Jan 23, 2010 at 6:40 PM, Scott Daniel - Turbovans < > > scottdaniel@turbovans.com> wrote: > > > > > what pops into my mind is a stuck on fuel pump relay ( it's the one on > > the > > > right, the one with a double white wire coming off it ) , > > > > > > < well, to make sure I'm not giving someone bum info, ...that's on a 84 > > 1.9 > > > waterboxer. I think the fuel pump relay wiring might be different in > > later > > > years. > > > > > > > Or......the ECU is providing full time ground to the fuel pump relay. > > > that's rare, but I do have one 1.9 Ecu that does that.....pump runs > > > continuously with key on. - and it's the ecu for sure on that one. > > > > > > The fuel pump doesn't shut off after a few seconds because it knows the > > > system is pressurized....it just does it by time, prett' sure. > > > For sure, the ecu has no idea what the fuel pressure is. > > > > > > on fuel pressure............... Oddly, I had some weirdness on a 'hasn't > > > run in a few years' vanagon yesterday. It was acting weird. > > > I put a fuel pressure gauge on it ....100 psi, while cranking. - Bad > > fuel > > > pressure regulator, which I consider very, very rare. > > > > > > But it is good to actually see what the fuel pressure is. > > > There is sort of no way really to be sure fuel pressure is correct, > > without > > > putting a gauge on it. > > > Usually, when digging through a running or starting issue, once I put the > > > fp gauge on it, I just leave it on there until I'm finally through with > > the > > > whole process, and things are working right again. > > > > > > And ............winter too .........one thinks of 'fuel system' more in > > the > > > winter - due to condensed water in the tank, due to more moisture > > > everywhere....perhaps even from the gas station tanks the fuel comes > > from. > > > Always consider 'the fuel itself' too, though of course that won't make > > your > > > fuel pump run continuously. Sorry...getting ahead of things there. > > > > > > Scott > > > > > > > > > > > > ----- Original Message ----- From: "Mark" <mbrush@GMAIL.COM> > > > > > > To: <vanagon@GERRY.VANAGON.COM> > > > Sent: Saturday, January 23, 2010 2:40 PM > > > Subject: fuel pump problem? > > > > > > > > > > > > Hi all - Just went to fire up the vanagon after a four week layoff. It > > >> started right up, then died and wouldn't re-start. When I 'energize' > > the > > >> system (turn key without starting all the way), the fuel pump runs > > >> continuously. It's never done that before. It normally just cycled on > > >> and > > >> kicked off once it was pressurized. Any ideas on where to start > > looking? > > >> > > >> Mark > > >> > > >> -- > > >> Mark > > >> 1990 Westy (2.1 - manual) > > >> > > > > > > > > > > > > -- > > Mark > > 1990 Westy (2.1 - manual) > > > > > >-- >Jake > >1984 Vanagon GL >1986 Westy Weekender "Dixie" > >Crescent Beach, BC > >www.thebassspa.com >www.crescentbeachguitar.com >http://subyjake.googlepages.com/mydixiedarlin%27


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