Date: Tue, 2 Apr 2002 14:24:24 EST
Reply-To: CMathis227@AOL.COM
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Chuck Mathis <CMathis227@AOL.COM>
Subject: Re: 1.9L bogging down on acceleration when hot..anyone ideas???
Content-Type: text/plain; charset="US-ASCII"
Terry,
My shopping list of replaced parts is pretty close to yours. When I edited
my response to the list I dropped out the TPS for some reason known only to
my delete key.
The TPS is definately one of the pieces of the stumble puzzle. Mine wasn't
working consistently so I changed it. Had problems getting the new one to
operate when set to the Gospel according to Bentley. Finally gave up and
adjusted it out until the green light on the Digitool went out then tweaked
it back in til the light came back on. Tightened everything back down and
most of the stumble was gone. Probably could have done that with the old
one. After I got the TPS operational I still got the stumble/bogging
occasionally and noticed that the intake boot was loose. Once tightened
everything is smooth and no more stumble. And how many $$$ later?
Chuck
'85 Wolfsburg Westy - 'Roland the Road Buffalo'
In a message dated 4/2/2002 11:09:24 AM Central Standard Time,
CTONLINE@webtv.net writes:
> Your throttle positioning switch is either out of adjustment, or
> shot-----
>
> Mine did this for a long time, and this was my last resort--I changed
> it--no more stomp and wait for the van to move.
>
> And like a dummy, I bought all ths stuff new---
> AFM, idle sensor, temp sensor, oxy sensor, and a whole lot more---it was
> only the TPS---
>
> Later,
>
> ______________
> |[ ] [ ] [ ]\
> | | | |
> ~~~ ~||-(())----(())-|
>
> Terry--
>
> "Zoom, Zoom, Zoom"
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> http://community.webtv.net/CTONLINE/TerrysHighOnLife
>
>
> From: Chuck Mathis <CMathis227@AOL.COM>
> Subject: Re: 1.9L bogging down on acceleration when hot..anyone ideas???
> To: vanagon@GERRY.VANAGON.COM
>
>
>
> I went through a whole bunch of stuff to try to eliminate a similar problem
> with my '85. Start with the cheap stuff first.
>
> Make sure the intake boot is well attached and in good condition. (This
> was
> actually my final solution after all the other stuff.)
> Check the carbon track in the AFM -- mine had a bad spot just above the
> normal idle position. I enlarged the screw holes in the board and shifted
> it
> so that the arm ran on a fresh track. (This was my next to the last step
> and
> solved most of the problem.)
> Check on the condition of all the vacuum lines -- especially those small
> ones
> attached to the fuel pressure regulator.
> Check the fuel pressure and function of the fuel pressure regulator.
> Try tightening the AFM spring some. Be sure to keep track of the number of
> notches you move the wheel -- you may want to put it back at some point.
>
> Chuck
> '85 Wolfsburg Westy - 'Roland the Road Buffalo'
>
>
> In a message dated 4/2/2002 10:25:22 AM Central Standard Time,
> LISTSERV@GERRY.VANAGON.COM writes:
>
>
> > Date: Tue, 2 Apr 2002 10:54:21 EST
> > From: JordanVw@AOL.COM
> > Subject: 1.9L bogging down on acceleration when hot..anyone ideas???
> >
> > when i drive my '84 1.9L wbx for a while, then stop at a light and idle
> for
> > a
> > few mins, then pull out again, there is no response at first when i step
> on
> > the gas, it bogs down and then finally starts moving when the guy behind
> me
> > is almost up in my rear bumper.. any ideas? i've been adjusting the
> idle
> > speed screw, it doesnt help.
> >
> > Thanks in advance-
> >
>
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