Date:         Fri, 17 Mar 2006 11:51:23 -0500
Reply-To:     Roger Sisler <rogersisler2000@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Roger Sisler <rogersisler2000@YAHOO.COM>
Subject:      Re: 1.9 runs better with 02 sensor disconnected-kinda long cause
              I need to ventialte

Thanks for the imput. I think I can solve this problem now. I get very
little surging(,150rpm as opposed to 200  or so), and ,the idle is more
stable when cold, and the exhaust is sweet(not coolant).I  did this with
the dash tach, a vaccum gauge,and multimeter. Only a temporary repair, as I
need the timing corrected first. The vaccum gauge now shows a smooth needle
without vibration, where previously the needle vibrated 1/3 to 1/2 inch of
vaccum. When this timing is done correctly, I will readjust the air screw
and throttle switch screw, a final time.

The sensitive clutch issue is gone now too. Apparently,the throttle switch
activation was a bit more reliable than I thought. I readjusted it closer
to the .002-.004 spec. I adjusted the timing a bit by ear,and backed out
the air screw on the throttle body(all with the idle stabilizer bypassed)
till the idle was ok. The clutch problem disappeared. Somehow, the off idle
power was not good,and easily stalled the engine when put underload.Another
drivability issue related to a  correctly adjusted throttle valve switch?
Once again, these are preliminary adjustments to determin the needed
solution.I will nail these down later.I remember when I posted earlier
about this issue, a couple of others claimed simalar symptoms( bad cold
idle,stalling when cold at a stop light). Try backing out the air screw
adjustment with the idle stabilizer bypassed.Recheck your timing.Roger