Date: Tue, 9 Oct 2007 13:05:12 -0700
Reply-To: Brendan Slevin <brendan@BELLATAZZA.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Brendan Slevin <brendan@BELLATAZZA.COM>
Subject: Mis-firing
Content-Type: text/plain; charset="us-ascii"
Is there a 1,9 vacuum diagram online anywhere. Searches have not turned up
much.
Brendan
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
Dennis Haynes
Sent: Tuesday, October 09, 2007 10:32 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Mis-firing
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
|