Actually George, you confirmed it.  In the original post cylinders 2 and 4 were
identified as possibly being a problem.  The later recommendation to swap wires
was to swap the wires for 3 and 4.  Since 3 was good, if the wire for 4 were bad,
the wire swap would leave you with only cylinder 1 and 4 running correctly; hence
it would run significantly worse.  You could confirm this by removing the wire
from #3 and find that there would be no change.  At least, I think that's the
logic behind all this . . . :^)

Marc Perdue

George Goff wrote:

> In a message dated 12/11/02 9:36:07 PM, drillock@EARTHLINK.NET writes:
>
> << Read the original posts. He already identified a specific cylinder with
> a problem. >>
>
> Read the post and you will find that no ONE cylinder has been identified as
> lame.  All the plugs were black indicating all four cylinders were running
> excessively rich at the start of the troubleshooting session.  He then pulls
> the injector plugs one at a time and notes a change for TWO of the cylinders.
>  Now, if you want to bet that two injectors or two plug wires became hinky at
> the same time and then you are going to identify which it is by swapping
> things around, I'll give you some good odds!  I have attached the grist of
> the original posting to refresh your memory:
>
> 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
>