Emissions Test Failed - Help?

[Roa, Greg]

When I had a similar problem with my 4000q, it was simply that the timing was too far advanced.  Try setting the timing at the factory spec.  6 degrees before TDC, I think.

Good Luck!
Greg Roa
Cincinnati, OH
86' 4kcsq
93' 90 CS
83' 944


>From: Dave Hord <spokes at the-wire.com>
>To: quattro at audifans.com
>Subject: Emissions Test Failed - Help?
>
>Hey all,
>
>Patient: 1987 Audi 4000 quattro
>Problem: Failed Emissions Test.
>
>Test is done at 2500rpm (in neutral) and Idle RPM
>
>I don't have my first emissions test in front of me, but after failing the
>first test I looked in the archives and everything there seemed to point
>towards needing a new Catalytic Converter.  Easy enough, we make them.  I had a
>new O2 sensor in my desk, so I installed that as well.
>
>My new test this morning was a fail with pretty much the exact same numbers.
>Todays test:
>
>2500RPM
>HCppm: Limit=300 - Reading=312
>CO%:  Limit=1.5 - Reading=8.76
>
>Idle
>HCppm: Limit=300 - Reading=580
>CO%:  Limit=1.5 - Reading=10.07
>
>Anyone have some bright ideas as to what I should be trying next, and where the
>problem might lie?
>
>Please CC me as well as the list, as I am switching to not-recieivng the list
>due to work being rather hectic this month.
>
>TIA,
>
>-Dave
>
>--
>86 4ksq 266,600km new to me as of March 5th 2003... will it stick around??
>89 90q  330,000km as of Feb 26th.
>Rally Conversion...perpetually in progress...
>Roll cage shots available at:
>http://home.the-wire.com/~spokes/rollcage/page1.htm