Running on 5 of 6 cylinders - running out of suggestions

[Joshua Van Tol]

He swapped injectors from cylinder to cylinder already, so it's not that.
Could be a bad injector driver or coil driver though. Look at POSs and ECU
next.

On Mon, Oct 29, 2012 at 4:21 PM, Michael Veglia <msvphoto at pacbell.net>wrote:

> Our 1995 A6q avant was running on 5, hard miss, and it was cured by
> running a strong dose of injector cleaner. It happened suddenly, and
> cleaned up within not all that many miles of running a very strong dilution
> of Techron in the fuel. The miss was so bad it seemed like a cylinder was
> flat. This was at around 125k miles, or so, on a motor that has since gone
> another 100k+ miles. If compression is good on all six, I would suggest
> looking for a clogged injector as a possibility.
>
> HTH and good luck!
>
> Mike Veglia
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