Date: Wed, 19 Nov 2008 19:38:34 -0500
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: throttle position sensor was-bucking in parking lots
In-Reply-To: <8CB18772F15DD1D-A74-8A6@WEBMAIL-DF08.sysops.aol.com>
Content-Type: text/plain; charset="us-ascii"
Except for a desire to make the steering rack leak or blow a hose, why would
you turn the steering to full lock when it is cold? In fact why would one
ever go to full lock and hold it there at any time? To go a step further,
you should always try to have a car rolling a little bit as you turn the
wheel. Synthetic ATF will help the PS system work better in cold weather.
The throttle position switch does nothing to improve the idle or compensate
for changing loads. All it really does is provide fuel cut off at closed
throttle and over running the engine. If it fails to open when the throttle
is cracked open it will cause fuel cut off at a certain rpm but that does
not happen until the engine is warm enough to go into closed loop or O2
sensor control.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
David Clarkson
Sent: Wednesday, November 19, 2008 11:01 AM
To: vanagon@GERRY.VANAGON.COM
Subject: throttle position sensor was-bucking in parking lots
I have checked the electrical portion of my switch and I have
continuity when it is fully opened and closed but still get some
stalling when the vehicle is turned lock to lock when it is cold. I
have replaced the ps pressure switch and have checked it for proper
operation. Should I still remove my throttle body and check my switch
with this symptom? Thanks list.
David Clarkson
90 Westy
266K
-----Original Message-----
From: Giasson, Pascal (DNR/MRN) <Pascal.Giasson@GNB.CA>
To: vanagon@GERRY.VANAGON.COM
Sent: Wed, 19 Nov 2008 7:34 am
Subject: Re: bucking in parking lots
Sounds to me like your throttle position switche(s) need adjustment.
The procedure for adjusting it (or them) are in the Bentley and I'm sure
in the archives and/or on the Samba.com. If you don't have a Bentley
Shop manual for the Vanagon you should get one as it will prove to be
invaluable. Try searching TPS (throttle position switch) in both places
and you will get lots of information. I believe early '84 have two
switches (like mine) and later '84 have only one switch. Mine did the
exact same thing you described after rebuilding my motor because my the
switches that were out of adjustment. I also have the dijijet fuel
injection manual that has the adjustment procedure in more detail than
the Bentley. Pmail me if you cannot find the information in the
archives.
Pascal
'84 Westy
-----Original Message-----
"So this is the problem, when a step on the gas pedal just a little. The
motor revs up and down. When idling it runs fairly smooth but sometimes
it
does this also when idling. Otherwise the motor seems to run fine"
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