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Date:         Tue, 9 Oct 2007 14:44:28 -0700
Reply-To:     Old Volks Home <oldvolkshome@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Old Volks Home <oldvolkshome@GMAIL.COM>
Subject:      Re: Mis-firing
Comments: To: Dennis Haynes <d23haynes57@hotmail.com>
In-Reply-To:  <BAY125-F397264A42A23B2F916CAA8A0A50@phx.gbl>
Content-Type: text/plain; charset=ISO-8859-1

Keep in mind that Cold Start Valves are on Air Cooled Vanagons, not on Wasserboxer models. Dunno why they discontinued them when they went to watercooled, except that maybe the ECU programming was changed to allow for a richer mixture during warm-up. -- Jim Thompson 84 GL 1.9 "Gloria" 84 Westfalia 2.1 "Ole Putt" 73 K Ghia Coupe "Denise" 72 411 Station Wagon "Pug" oldvolkshome@gmail.com http://www.oldvolkshome.com *********************************** On 10/9/07, Dennis Haynes <d23haynes57@hotmail.com> wrote: > > Look for the massive vacuum leak such as a cracked or disconected intake > boot or the hose connection for the brake booster or auxilary air > regulator. > > What is happening is that while cranking the cold strt valve is spraying > fuel. Evenutally enough is in manifold for engine to start. That excess > air > is allowing for the high engine revs. After that fuel burns, since the AFM > is not telling the ECU to add the correct amount of fuel, the engine dies. > > Dennis > > > >From: Brendan Slevin <brendan@BELLATAZZA.COM> > >Reply-To: Brendan Slevin <brendan@BELLATAZZA.COM> > >To: vanagon@GERRY.VANAGON.COM > >Subject: Re: Mis-firing > >Date: Tue, 9 Oct 2007 09:18:24 -0700 > > > >It is very strange. I'll turn it over and it catches right away and > >instantly revs way up to about 3500 rpm and back to 0 and dies- a la: > >vrroooOOOOOoooommm, poot. If I can get it to "idle" it is super rough > and > >when I press the accelerator it does nothing for a couple pumps and then > >revs up to 3500 again, almost no correlation between throttle and > revs. I > >am at a loss. I have the plugs and need to get the right cap and > rotor. I > >got one that was supposed to fit from autozone and the plug wires just > sit > >in their holes and flop around. The bosch cap it had seems to have > smaller > >holes. Ahhh. And I was so happy when I got the engine back in and > hooked > >up. :( > > > >Brendan > > > > > >-----Original Message----- > >From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf > Of > >Geza Polony > >Sent: Monday, October 08, 2007 7:14 PM > >To: vanagon@GERRY.VANAGON.COM > >Subject: Re: Mis-firing > > > >I had exactly the same symptoms. The Bentley ECU pin test revealed that > #1 > >fuel injector was not firing and pointed to an ECU problem. Replacing the > >ECU did the trick...almost...when it started misfiring again, I put the > old > >ECU back in and then IT worked. Conclusion: bad connection at the ECU. > >Cleaning the pins with an acid etch solved it. > > > >Try running the engine at idle and moving the ECU pin connector around to > >see if that changes anything. If yes, take it apart and clean the pins, > >then > >put back together firmly. If not, do the Bentley pin test and see what > you > >get. It will tell you if there's a bad wire or bad ground to the #1 fuel > >injector. > > > >If you're getting spark, then it's a fuel injection issue. You are > getting > >spark to #1, yes? > > > > > > > >On Mon, 8 Oct 2007 15:43:08 -0700, Brendan Slevin <brendan@BELLATAZZA.COM > > > >wrote: > > > > >So great news is I got Totoro back together and "started." I say that > > >loosely. I thought it might even out after a minute but it did > not. It > > >seems to be not firing/misfiring on cyl 1. I did not change any timing > > >related anything, my plug wires are correct. I haven't done it yet, > but > >I > > >have a new cap/rotor and plugs. It needs them anyway, but I am not > super > > >hopeful that this will fix it. I am fairly certain about my vacuum > >lines, > > >but not positive. I replaced all my fuel lines and all my vacuum lines > >and > > >all four little intake boots. The van ran and idled perfectly before > all > >of > > >this. AFM is hooked up. I am at a loss. Any help is greatly > >appreciated. > > > > > >Thanks! > > > > > >Brendan > > >I have measured out my life with coffee spoons. -T.S. Eliot


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