I would tend to agree with Chris' assessment. Your cat may be bad, assuming everything else on the car is fine. I'm in California so I have to deal with stricter standards. When I tuned up my GLI & used a bottle of fuel injection cleaner before my last emissions check, I got the following numbers at idle:
Max/Measured HC: 120/14 CO: 1.00/0.00 (yes, all zeros) NO: not measured here I hope you solve your problem so you can get back to enjoying your car! Arnold ----- Original Message ----- From: "Chris Franson" <[email protected]> To: "A2_16v" <[email protected]> Sent: Tuesday, November 11, 2003 8:12 PM Subject: Re: [a2-16v-list] Failed PA emissions (the numbers) > On Nov 11, 2003, at 15:46, Joswick, Chris wrote: > > > > > > so CO and HC slightly better and NO worse, any thoughts anyone? i > > figure that could just be normal variation thanks all > > Given that all the numbers are above limits, how old is the cat? It > doesn't seem like it's working. > > I assume you've done all the normal tune-up stuff like plugs, air > filter, etc. You should also confirm that the fuel mixture is in spec > and all the various vacuum lines and fuel injection stuff is in place. > Still, I think you're looking at needing a new cat- those numbers are > so high, something is clearly wrong. A properly tuned engine should be > *far* lower than what you are getting. Another overlooked important > point: be sure the car is fully warmed up before the test; > incidentally, a failed coolant temp. sensor can force the engine to run > in its cold enrichment mode even when it's warm. Even after all that, > the quickest solution is probably just to replace the cat if it's old. > For reference, I just had my '91 Protege tested here in Connecticut- > the limits here are much stricter and I had no trouble passing with a > catalytic converter that is of unknown age: > > Limit/actual > HC: 167/142 > CO: 1.11/0.17 > NO: 1944/865 > > Good luck, > Chris > > _______________________________________________ > a2-16v-list mailing list > [email protected] > http://mail.a2-16v.com/mailman/listinfo/a2-16v-list > For list archives, see listinfo link above. >
