Date: Sun, 3 Nov 2002 11:11:34 -0500
Reply-To: Laurence Smith <laurence@ALANASMITH.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Laurence Smith <laurence@ALANASMITH.COM>
Subject: Re: YAHOOOO (well, almost)
In-Reply-To: <F66eKi0K41uSBoYXWVr000021fe@hotmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Hard to beleive isn't it? One small ground wire can cause so much
frustration and expense.
My theory is that the Vanagon mechanics who are well versed at changing the
heads or the engine never have this problem. When changing out a head or
the engine, thay are forced to reattach the ground wire back on the head and
make it a good connection. Thus, when a Vanagon mechanic is presented with
a running rich problem, the bad ground is at the bottom of the list of
possibilities. How can a simple ground cause such a catastrophic
drivability problem? they would say. Must be a digifant component....
When I had my running rich problem, I changed EVERY digifant component and
it was only when I was reviewing the grounds AGAIN, that the ECU terminal 19
ground came to focus. Running a new one fixed it for good.
For the archives:
If you have a chronic running rich problem you have likely already changed
out or tested many of the digifant components (otherwise you would not be
reading these archives in desparation). Do this: Check and re-check the
ground wire attached to the head. If it looks okay, run a new one from
terminal 19 on the ECU.
- Laurence
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Laurence Smith
Hamilton, Ontario, Canada
90 Westy (fanumbos)
87 GL
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-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM]On Behalf Of
john cianci
Sent: Sunday, November 03, 2002 10:08 AM
To: vanagon@GERRY.VANAGON.COM
Subject: YAHOOOO (well, almost)
THE WESTY IS RUNNING!!! Thanx so much to all the list members for all the
help with the running rich problem...Laurence, I spliced in the number 19
ground and ran a second ground from the control unit back to the engine bay
and upon the next test drive...NO RICH RUNNING PROBLEMS. I don't exactly
know if this was the precise answer but this "ground point check" I went
through them again and found that the #25 was sloppy in the harness and may
have been intermittent, I also spliced out a bad looking sectio n of my
injector wires that was hidden behind a mess of tape. and replaced the O2
sesor plug again. I am going to spend my time and replace a lot of the not
so good wires and hopefully avoid this problem again. NOW (the almost). The
bus surges a little bit when it starts up to say 3000 rpms and then settles
normal and runs fine....I can deal with this for the time being and work
through it, you guys rock. Thanks again. Great to hear you got the #18
ground fixed Chris, she is! getting replaced as well
John Cianci
www.hydratek.org
check it out, I am avoiding corporate America
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