the cooling system control motor heat also right? plus the
fact that you might be burning lean. more i read it sounds
like vanagons are thermal systems.

Joe

On 11 Dec 2002, George Goff wrote:

> In a message dated 12/11/02 9:21:33 AM,
> drillock@earthlink.net writes:
>
> << George, he said to swap the 2 plug wires,
> namely both ends. He could have stated this
> more clearly. The swapping of the injector
> wires will help isolate an injector wiring
> problem versus an injector problem. The goal
> in both cases was to determine the reason why
> a given cylinder appears to not be working at
> idle. >>
>
> Mark,
>
> As I said before, this exercise proves
> nothing. It does not proof out the ignition
> wires, the injectors nor the injector
> wiring. About all it demonstrates is that
> the connectors are not frozen to their
> respective terminals. While all this
> swapping is occurring, please try to swap in
> a little reason.
>
> Swapping plug wires will prove something IF a
> known good wire is swapped with the suspect
> wires one at a time. Swapping injector wires
> will help isolate the source of the problem IF
> the injectors are pulled so that they can be
> observed during the swap fest. But, swapping
> as described previously proves nothing.
>
> Anyway, all this ignores what Eric claims to
> have done to date and the description of the
> problem:
>
> In a message dated 12/10/02 7:42:09 PM,
> eunrau@YAHOO.CA writes:
>
> << 1) At first engine wouldn’t start.
> Flooding? Pulled the plugs - they
>
> are BLACK. Changed the plugs, rotor & cap
> (overdue anyway)
>
>
> 2) Engine starts. Runs rough. Exhaust smells
>    like fuel.
>
>
> 3) Plenty of exhaust pressure at the tailpipe.
>    Does this rule out a
>
> plugged cat?
>
>
> 4) unplugged the O2 sensor - no change - still
>    rich and rough
>
>
> 5) Maybe a bad injector? Decided I'd unplug
>    injector wires one at a
>
> time to see what would happen:
>
> Unplug wires at cylinder #3 - idles much
> rougher, plug back in
>
> Unplug wires at cylinder #4 - no change to
> idle, plug back in
>
> Unplug wires at cylinder #1 - idles much
> rougher, plug back in
>
> Unplug wires at cylinder #2 - no change to
> idle, plug back in
>
> Does this mean that injectors #2 & #4 have
> failed???
>
>  >>
>
> George
>
>
>
>