New Cat?
#1
06-16-2008, 11:24 PM
New Cat?
My 1990 Audi 90 Quattro 20v didn't pass its last emissions test, I think it might be a bad cat. Does anyone know what might be wrong with it?
#3
06-17-2008, 01:24 PM
RE: New Cat?
It failed the HC(PPM) test. The limit is 220 and i got 230 from the oprevious 70 for idle emissions. but everything went up some from the previous test.