[s-cars] Re: S-CAR-List Digest, Vol 16, Issue 38

[Tom Green]

Ok, Mark, it looks like you're on track.  I would suggest that you must 
consider
the  connectors  as well as the O2 sensor and MAF.   So be sure to clean
contacts as you examine each part.  It would be nice to have a shop 
full of
equipment to test the FPR and clean and flow the injectors, or a supply 
of
parts to test.  That said, I think the lack of problems in other parts 
of the operating
range point more to the identified sensors.

Tom '95 S6



> Original Message:
> Date: Fri, 11 Feb 2005 10:18:15 -0500
> From: Mark Pollan <mark.pollan at mci.com>
> Subject: RE: [s-cars] ARGH!!  Stalling at idle
> To: s-car-list at audifans.com
> Message-ID: <005a01c5104c$e886e280$5f0c9283 at mcilink.com>
> Content-Type: text/plain; charset=us-ascii
>
> Absolutely Tom, thanks for asking ;-)
>
> One thing I did not note previously is that I have a new O2 sensor - 
> only 5K
> or so miles on it.  The fault code is a 00561 - Mixture Adaptation -
> Adaptation Limit (Add) not reached.  All display groups are in spec 
> except 9
> (O2S adaptation).  Spec is 100 - 141.  Prior to the new O2S I read 48.
> After I read 63.  This per Bentley points to:
>
> 1.  The fuel system pressure being too high (I'm running MTM 1+ 3bar)
> 2.  O2S (New sensor 5K miles ago)
> 3.  MAF
> 4.  Air leak between turbo and TB.
>
> I pressurized the intake last night and did/do have a leak at the MAF 
> to
> turbo hose at the turbo.  Relatively small and I can't imagine much/any
> un-metered air being pulled through there.
>
> I will look at some more things this weekend as I will have more time.
>
> In the meantime, keep 'em coming.  I'm trying to fill my dance card 
> for the
> weekend.
>
> Regards,
>
> Mark