--------------------------
Hi Dave,
    Good work so far. You now need to do a compression check and  hopefully
that will enlighten  you. I feel pulling the injector plugs on one cylinder
at a time with the idle stabilizer disabled is a good diagnostic approach.
If you like to pull  spark plug wires put the ecu in open loop first by
unplugging the O2 sensor.  The rpm drop should be similar on all cylinders
on a normal engine.
Darrell
-----Original Message-----
From: Dave <dave@V-DUB.MUSA.COM>
To: Vanagon@VANAGON.COM <Vanagon@VANAGON.COM>
Date: Wednesday, October 07, 1998 12:26 PM
Subject: Ignition System Question

>I checked my fuel injectors last night and found that when I disconnected
>power from the left rear cylinder the idle did not change.  When I
>disconnected the injector on all the other cylinders the idle dropped and
>the engine almost died.  I checked the injector, it was only letting a
small
>amount of gas drip out, so I cleaned it and checked it again.  It now works
>fine, so I hooked everything back up, started it and disconnected the
>injector again, same thing, no change.  I checked the plug, it is getting
>power.  When I disconnect the plug wire from the distributor nothing
happens
>either.  Another note, the engine idles at 2100 rpm, I just cleaned and
>lubed the throttle body and linkage so it's not sticking.  Does anyone have
>any ideas?  I would think that since the cylinder is getting gas and the
>plug is firing it should have some effect when I cut power to it.  Any
>suggestions would help.
>
>Dave Filcoff            dave@v-dub.musa.com
>Volkswagens!            http://v-dub.musa.com
>------------------------------------------------------
>87 Vanagon GL Wolfsburg Weekender (129k and apparently running on 3
>cylinders)
>88 Fox GL 4 door (152k)
>90 Associated RC10 Team Car, Aluminum
>95 Specialized Stumpjumper M2 FS
>------------------------------------------------------
>St. Louis / Columbia, MO
>LiMBO - Gateway VW Club - VWoA VW Club - Der Busbezitzer Gruppe
>