Date: Sat, 4 Oct 2003 10:41:59 -0700
Reply-To: Roger Donahe <rdonahe@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Roger Donahe <rdonahe@COMCAST.NET>
Subject: Re: Low idle at start
In-Reply-To: <005101c38a6e$fe26b0d0$98a13841@korky>
Content-Type: text/plain; charset="US-ASCII"
Ken & others,
Where & what's the TEMP I sensor? I have the Bentley manual but I must
admit to having trouble finding what I need with that book. It seems I
can never find what I need until someone points me to it.
I have a VOM and tested the TEMP II sensor. With the Ohm meter in the
20K setting it reads 3.12. Engine is cold, I had to start it to get it
up on the ramps but it was ever so brief. Per the Bentley table that
seems appropriate. Ambient temp outside this morning is 58F, and the van
has sat outside overnight. Bentley table looks like resistance should be
in the 3000ish range so it seems like it's working correctly. Am I
testing/reading this correctly?
I'm not opposed to replacing the TEMP II sensor as a diagnostic measure
since it's cheap and easily accessible. I'm just not sure where to get
one in person, as opposed to waiting for mailorder. I'll check around.
Thanks in advance,
-Roger
87 Westy
Seattle
-----Original Message-----
From: Ken Lewis [mailto:kdlewis_wasting_time@access4less.net]
Sent: Saturday, October 04, 2003 4:48 AM
To: Roger Donahe
Subject: Re: Low idle at start
Roger;
There are quite a few possobilities but the TEMPII sensor is on the top
of the list. It is notorious for failing so go ahead and replace it.
They are <$20. If it doesn't solve your problem leave it in there and
keep the old one for a spare. If you have a good VOM you can compare the
resistance to the TEMPI sensor. You will have to do it first thing in
the morning before being run i.e. when the two sensor are at the same
temperature. They theoretically should be identical but allow for ten
percent. Let me know what happens. Ken Lewis
Ken Lewis
86 Transporter Crew Cab
60 356 T-5 Porsche
http://neksiwel.20m.com/
Vanagon tech, pixs, O2 monitor gadget
----- Original Message -----
From: "Roger Donahe" <rdonahe@COMCAST.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, October 03, 2003 6:35 PM
Subject: Low idle at start
> I have an 87 Westy (2.1l). The last 2 days it has been exhibiting an
> extremely low idle at cold startup. It will fire up quickly, which is
> normal, but then will idle way low, like 300 RPM. Just barely hanging
> on, so to speak. If I give it gas it will respond, though it seems
> like it runs a little rough. Sometimes it'll clear up as soon as I
> give it throttle and then it'll idle correctly. Other times it takes a
> minute. But in all cases it corrects itself seemingly as the engine
> gets warmed up and runs fine from then on.
>
> I searched the archive and there's an exact description of this from
> about a year ago. The suggestions from listers at that time was to
> replace the Temp II sensor. I'm unable, at this point in time, to find
> out whether or not that cured the problem.
>
> Any input/advice from the community would be appreciated.
>
> Thanks,
> -Roger
> 87 Westy
