I found a 5 ohm resistance on the common lead on the right rear cylinder
injector at the plug.  Does anyone have an extra plug with 6-12" of lead on
it that I can use to splice into my harness?  Thanks to all who offered lots
of suggestions.  Hans hit it on the nose.
Tom Miller

----- Original Message -----
From: "Hans Brouwer" <h.brouwer@SYMPATICO.CA>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, December 31, 2002 11:00 PM
Subject: Re: Intermittent miss on one cylinder

> Could be an injector wiring problem.
>
> Check the continuity of the injector plug wire.
>
> This is what I did and solved a similar problem:
>
> 1. Disconnect the battery.
> 2. Disconnect the plug at the ECU.
> 3. Check wih Bentley wiring diagram what the positive and negative
injector
> are on the big plug that connects to the ECU.
> 4. Take the enjector off.
> 5. Check the continituity.
> 6. Wiggle the wiring harness above the theromostat housing.
> 7. Continuity yes/no
>
> The negative wires from each of the injectors are crimped together to one.
> This connection is in the main wiring harness. If water gets in there it
> will corrode the wiring hwere it is crimped together. The positive wires
> come together as well around the same spot.
>
> Where the wires are crimped, the wires corroded and were not making good
> contact. In matter of fact when I touched them they fell right off.
>
> You can also use a noid?? or little test light that plugs in the injector
> connector, start engine and see if it flickers.
>
> Hans Brouwer
>
> Cumberland, Ontario
>
> 86 Westfalia
> 69 Bus
> 92 Cabriolet
>
>
> ----- Original Message -----
> From: "Tom Miller" <tmiller@VCMAILS.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Saturday, February 28, 2004 8:56 PM
> Subject: Intermittent miss on one cylinder
>
>
> > OK.  I have been trying to solve this one myself and I'm getting no
where.
> > I have an 89 Westy with a rebuilt motor.  There are nearly 15K miles on
> it.
> > The right rear cylinder is miss firing at times.  It generally works
until
> > the engine warms up a bit and then cuts in and out at will.  I swapped
the
> > ECU with no change.  I replaced the plugs and distributor cap with no
> > change.  The wires are new at 10K miles.  The spark seems to be very
> strong.
> > I swapped injector connectors but the problem remains with the right
rear
> > cylinder.  I checked compression and it is very good.  I was about to
> check
> > the head cap nuts to see if they are torqued properly.  I am thinking
> maybe
> > there is a small coolant leak into the cylinder that "puts out the fire"
> but
> > there are no clouds of steam coming out of the tail pipe.
> >
> > Any ideas what more I should do?
> >
> > Thanks much.
> > Tom Miller
>