Also see Item 3...too lean..... - Saab Other Cars Bulletin Board - Saabnet.com
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Item 3: Emissions Test
NOx is produced when combustion chamber temperatures are high. It was once viewed as the #1 enemy and responsible for the smog in the LA basin. At that time emission reducing devices were geared towards reducing it at the expense of other emissions. That was 20 years ago and since then scientists have come to understand that all the emissions are destructive especially CO2 (a harmful greenhouse gas because it adversely effects the ozone layer).
Unfortunately on a VW there is no simple way to minimize all three emissions at once like a modern car is able to do. Lower the HC and CO by leaning out the engine and you produce too much NOx and vice versa.
Posts in this Thread:
- Jeep...What to do?, BostonDave, Tue, 4 Sep 2007 13:12:13
- Re: Jeep...What to do?, KenRothman, Wed, 19 Sep 2007 12:59:46
- Re: Jeep...What to do?, BostonDave, Thu, 6 Sep 2007 08:26:37
- Some ideas :), 2garfields, Wed, 5 Sep 2007 20:16:44
- Hey, Finch, Thu, 6 Sep 2007 07:30:15
- New cat will fix it good (+), vvk, Wed, 5 Sep 2007 06:50:19
- Re: Jeep...What to do?, JBack, Tue, 4 Sep 2007 13:59:43
- Possible EGR?....., Mike Lynch , Tue, 4 Sep 2007 13:28:56
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