Date:         Wed, 16 Jun 1999 23:21:21 -0700
Reply-To:     "Steven X. Schwenk" <Steve@SCHWENK-LAW.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Steven X. Schwenk" <Steve@SCHWENK-LAW.COM>
Subject:      Need FI Help...HELP!
Content-Type: text/plain; charset=us-ascii

Ok...i replaced the fuel filter, and the problem is
still there and we are supposed to leave for a special
father's day campout with another family and i'm
running out of time.  I never had a problem before so i
am not well acquainted with the FI system components.

Symptoms:
(1) at first, it missed at the very initial throttle
range...like 1/16th throttle...especially when
deacellerating...like a flat spot...no fuel flow is
what it felt like...ignorant instinct said "throttle
switch adjustment."  On acceleration initially if i
hold it at 1/16th throttle, it surges
up...down...up...down..up...down
(2)  if i hold the throttle so it is reving at
3000-3500, it is missing there,
too...rev...off...rev...off.  If i take it up to 4000
rpm, it seems to clear out and not do the rev..off
thing

Pertinent Info:

(1) I recently installed a brand new AFM... and I have
the special harness.  the new AFM worked fine at
first...i mean the symptoms did not coincide with the
installation of the AFM exactly, but they did arise not
very long afterward.

(2) The first time it began missing, I took it out and
filled the tank, and everything went back to
normal...and stayed fine with no missing on a 300 mile
trip.  the missing then appeared again the next time i
took the van out some weeks later.  The symptoms are
there now even after refilling the tank and changing
the fuel filter.

Could this be throttle switch adjustment?  Didnt't
think so.  Should I swap in my old AFM?  I will do this
tomorrow noght after work.  If that does not work, what
next?

Colby...if you're out there...do you have an opening
Friday morning if i can't fix it tomorrow???

Steve