Re: Failed NJ NO2 Emission Test - Saab 900 Bulletin Board - Saabnet.com
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Re: Failed NJ NO2 Emission Test
Posted by JohnK (more from JohnK) on Mon, 10 Mar 2003 14:38:54
In Reply to: Failed NJ NO2 Emission Test, RWBreining, Mon, 10 Mar 2003 14:21:57
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While you might end up needing a new cat or O2 sensor, there is a good chance that you might get away with retarding the spark to 13 or 14btdc.
If the air fuel ratio is just slightly lean, the NOx jumps fairly quickly.
I put in a new cat, but did not get a chance to put in a new O2 sensor, and I was also over on NOx. Moved base timing to 14 and sailed through.
Still have O2 sensor sitting on my workbench. When Spring comes!!
posted by 216.75.9...
Posts in this Thread:
- Failed NJ NO2 Emission Test, RWBreining, Mon, 10 Mar 2003 14:21:57
- Re: Failed NJ NO2 Emission Test, Nigel, Mon, 10 Mar 2003 16:20:19
- Re: Failed NJ NO2 Emission Test, JohnK, Mon, 10 Mar 2003 14:38:54 <-- Viewing This Message
- Re:huh?, Sjer, Mon, 10 Mar 2003 19:46:23
- Re: Failed NJ NO2 Emission Test, thereuare, Mon, 10 Mar 2003 14:34:05
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