Date:         Thu, 10 Jun 2004 07:57:39 -0700
Reply-To:     Jonce Fancher <strtbug@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jonce Fancher <strtbug@ATTGLOBAL.NET>
Subject:      Re: Fuel system...follow up
In-Reply-To:  <1086876649.40c86be94edd5@webmail.uoguelph.ca>
Content-Type: text/plain; charset="us-ascii"

hi ryan
ive been messing around with the 84 85 1.9L for about 2 years and have
found them to be a pain if these items are not in check.
** all vacuum lines and hoses must be in good shape if cracked or not
tight on the tube that they are connected to they leak air into the
intake manifold. there are alot of vacuum lines on the mid 80s cars
that over time fail. just replace them or hose clamp them. also most
hoses look good on the out side but are hard and brittle or cracked
under the cloth braid. check them all.
** also you must have NO exhaust leaks before the O2 sensor it will
detect that you dont have enough fuel and start dumping it in. it will
make it one rich pig. also if the sensor is plugged or not grounded
good that will have ill effect.
** also do a compression check 1st to check status of your engine
** another trick to raise compression back up after a compression test
if you have a low cylinder or 2 is to spray WD-40 down the spark plug
holes then install the spark plugs and start it up like normal then rev
the rpms up to 3500 to 4k or so and burn out the carbon build up on a
high mile motor. ive used this trick on a few air and water cooled cars
with usually very good results. in the times it didnt work there were
other issues to address.
good luck c-ya Jonce


>Sorry, the van is a 1984 Westfalia.
>
>Ryan
>
>Quoting John Rodgers <jh_rodgers@bellsouth.net>:
>
>> What year is your vehicle?
>>
>> If you are running a 2.1L WBX, then you may be having a problem with the
>> O2 sensor, or the Temp II sensor. I recall reading on this list a test
>> for the O2 sensor voltges using a meter. If they are off, then the ECU
>> will go to "Rich" for the fuel injection. I don't know where to tell you
>> to find the info. Maybe another list memmer can. I think the procedure
>> is posted on a web site somewhere. I think the Temp ll sensor also
>> affects how rich the mixture is.
>>
>> One other thing. Set your idle speed correctly. Warm the engine, shut it
>> off, disconnect the Idle Stabilizer Valve, Start the engine, turn the
>> big flat common screw by the AFM right or left until the idle is 800-900
>> rpm, then stop engine and reconnect the ISV. Allow to get cold for a
>> cold start. Start engine, ISV should kick up rpm to 1000-1200 rpm and
>> then drop back to 8-900 rpm as engine warms.
>>
>> Hope this helps just a bit.
>>
>> Regards,
>>
>> John Rodgers
>> 88 DL Driver
>>
>> Ryan Dawson wrote:
>>
>> >Hi everyone,
>> >
>> >Well, I thought that I had made the neccesary repairs and replacements to
>> my
>> >fuel mileage problem.  Below is a list of the adjustments that I have made:
>> >
>> >1. new fuel injectors (manufacturer - Echlin)
>> >2. new air filter
>> >3. new spark plugs (platinum)
>> >4. new oil and filter
>> >
>> >There are no leaks in the system, as far as I can tell.  The problem is, I
>> >installed the spark plugs yesterday evening, and then drove about 5 miles,
>> and
>> >when I came back I realized that I forgot to check the gap spacing on them.
>> >So, I took the plugs back out, and they were BLACK again!  I'm going on a
>> >camping trip today and am hoping to get better fuel mileage than a Hummer!
>> >Does anyone have any ideas?  Could it be that they are dirty due to the
>> >previous incomplete combustion?
>> >
>> >Any thoughts or theories are welcome!
>> >
>> >Thanks in advance,
>> >Ryan
>> >
>> >
>> >
>>
>>