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Old 05-23-2008, 01:27 PM
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patbob patbob is offline
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Join Date: Oct 2006
Location: Portland, OR
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This is a little off topic, but...

Quote:
Originally Posted by probear View Post
NOx can be taken care of with a cat, when the soot is out of the equation.
What does the NOx get catalyzed to? The catalyic converters were introduced to "afterburn" the excess hydrocarbons in the exhaust gasses. The TrapOx was introduced to trap, and oxidize (i.e. burn) the soot particles. From what I recall, at least some of the NOx variants are pretty stable and the catalyitic convers don't really touch them at all.

Quote:
If NOx was a primary issue, then EGRs would be required to be in operation, regardless of the age of the vehicle or the availability of parts.
They are. It is illegal to disconnect, disable or remove them. If they were installed on the vehicle when new, they must remain there, and functional, for the life of the vehicle. A bunch of yahoos violating the law doesn't make it go away.
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