[s-cars] Emissions fun

tedebearp at yahoo.com tedebearp at yahoo.com
Tue May 22 23:41:37 PDT 2012


The AC works fine at all times.  It's only the recirculate that is flaky.  Does this rule out the electric auxiliary fan?

Sent from my iPad

On May 22, 2012, at 10:16 AM, Bill Mahoney <bmahoney at disk.com> wrote:

> TB,
> I can’t speak so much to the emissions issue…  But, O2 sensor sounds like a good suspect.
> Add a can of BG44k to a tank of gas.
> You can add up to about 20% e85, aka e70 in some locales, for emission test passing purposes.. or, some Heet to an almost empty tank of gas.
> (I have been adding about 2-2.5 gallons e85 with each fill up since Feb.   Car seems to really like this blend.)
> WRT recirculation with the AC, check your electric aux fan.  Could be old and corroded and not work.. which would blow the bigass fuse.
> I believe there is a thermal switch, bottom of the driver’s side of the radiator, the bigass fuse in drivers side footwell for S6 AND a relay in the pass. side footwell for the electric fan.  These all must work for the electric fan to work which I believe needs to work under some heated conditions for the recirc.  switch and AC to work properly.
> The Fuse could be located in pass. side footwell for the urS4…???
> Or
> Moving to North Dakota could resolve both your emissions problem and AC problem.
> Good luck!
> Bill~fanning emissions~M
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