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Date:         Wed, 29 Mar 2006 20:46:13 -0500
Reply-To:     "Daniel L. Katz" <katzd54@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Daniel L. Katz" <katzd54@YAHOO.COM>
Subject:      Re: Fuel Pump? O2 Sensor?

rus:


try driving open loop - i.e., with O2 sensor disconnected. if she runs ok,
then replace sensor for sure. also, from your description, associated
wiring/connectors could have been put under a strain and damaged.


dan


On Wed, 29 Mar 2006 12:37:47 -0800, Rus <rusb01@YAHOO.COM> wrote:


>Hello Volks.
>
>well after nights and nights and nights of painstaking
>work and also three engines later i finally got my
>vanagon running wonderfully.....and after driving down
>the road for awhile on a trip of about 40 miles with a
>big smile on my face something started happening.....
>it started surging........when i floored it, it would
>run good....then when i let off between 40-65 it would
>sputter black smoke and like there was no power and so
>i would floor it again......runs good getting up to
>speed....then surges again.......
>at low speeds it does good......but sputters....idles
>good but sputters now.
>this happened and it would come and go, Run great for
>a week ago surge and then run good again. NOW im
>having a huge problem. I accidently ran out of gas the
>other day and so after getting gas the surging wont go
>away. this is a list of what i have done previously
>Ive
>changed the roter, dist. cap., new rubbers on the
>injectors, new fuel filter, new plugs, wires good, no
>fuel leaks, put in some injector cleaner and octane
>booster, even put in a different brain. Temp is good.
>Oil is great. not getting hot or anything, so i just
>dont get it.........could it be the fuel pump or the
>o2 sensor...(the reason im asking this is because i
>accidently messed the end of it up...forgot to put it
>back in the exhaust and it drug the ground for awhile
>and sort of ground off the end, I KNOW im stupid.) But
>would or could that affect the symptoms im having?
>i need help.
>Rus in Bartlesville
>
>87 Vanagon passenger
>
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