[s-cars] NOX emission failure

[Kent McLean]

Pollock, Thomas wrote:
 > what would cause a NOX emmision failure ?
 >
 > My 100 failed and the ahem, mechanic said he could fix it
 > for me but it would cost me $200.

My guess is that it sounds like a quick $200 for a simple
O2 sensor replacement.  You may want to check this link
for other tips:

http://www.audifans.com/twiki/bin/view/Audi/EmissionsTestTips

--
Kent McLean
'94 100 S Avant, "Moody"
'89 200 TQ, "Bad Puppy" up in smoke