[s-cars] The Dreaded Miss

[Varon H. Fugman]

>>I don't think it is a good idea to drive it for any length of time on 4
cylinders as the stink from the cat is pretty severe and the rich exhaust
will likely cause damage to the cat.

You can always unplug the offending cylinder's injector for the 4-cylinder
drive home.  I'm sure the lean exaust throws off the closed-loop operation,
but at least the cat won't get flooded with unburned hydrocarbons.

You can confirm that the dead cylinder is caused by a bad POS channel by
swapping the two POS modules (assuming it is acting up*).  If the problem
moves to a different cylinder (or goes away in the case of cylinder 3), it
is POS for sure. (i.e. problem would move between 1 and 4, 2 and 5, or 3 and
fixed when POS modules are switched.)

To use the spare channel, you need to move the problem to cylinders 4 or 5
and then do a pin swap to move the offending cylinder to the spare channel
(lots of good detailed instructions out there!)

Varon
'95 S6

*If it has fixed itself again, don't worry, the problem will be back again,
and will settle in to stay in a matter of a couple days!
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