Date: Mon, 2 Apr 2007 23:33:20 -0700
Reply-To: Zoltan <zolo@FOXINTERNET.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Zoltan <zolo@FOXINTERNET.NET>
Subject: Re: '89 vanagon poor engine performance
Content-type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original
The ground for the O2 sensor maybe in need of cleaning. It is under the AC
pump on the head, brown. Also their should be a strap from the body at the
same place. That bolt on the body maybe too rusty by now and needs to be
changed to a stainless, just like the one on the head. And the contacts to
be polished with some 400 emery paper. I even grind off the paint on the
body and after I put everything back, I load some grease on top to stop from
rusting.
Zoltan
----- Original Message -----
From: "danielludwick" <danielludwick@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, April 02, 2007 8:50 PM
Subject: '89 vanagon poor engine performance
I just bought an '89 Vanagon. The engine isn't oringinal so I'm not sure
exactly whats in it, though I'm pretty sure it's a Digifant 2.1L. Does that
sound right. I've purchased the Bently Factory Repair Manual and have found
it to be a great resource. But I am still unsure why the engine runs so
poorly. I know that the owner before me ran the vehicle for a rather long
time with an unoperable Air Intake Meter. I know that it ran way too rich on
gasoline because when I removed the spark plugs and the O2 Sensor they both
had an obscenely mesurable amount of carbon buil-up around them. I replaced
the plugs and to be sure of proper function I replaced the O2 sensor also.
But before doing that I replaced the the muffler with another used one and
removed that catalytic converter (I know the Cat was clogged and I think the
muffler was also).
Before I replaced the O2 sensor, I ran it without one and the engine ran
smoothly, though still extrememly rich, about 12mpg. Now I've put a knew one
and and wired it in, but give the engine 2 minutes and I find that at low
RPM's the engine seems to be getting too much fuel (or perhaps not enough
air?); it boggs out and nearly dies. If I turn off the engine and restart
it, the problem goes away for a few minutes, I would assume because it takes
the computer about this long to register the info it receives.
I'm just not sure what the next step would be to solve my problem. This is
my first Volkwagen. I am a capable mechanic do as much of my own work as
possible. If anyone can point me in the right direction it would be greatly
appreciated. Thanks, I loook forward to the continued use of this e-mail
server and the people using it.
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