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Re: 2003 OLDS ALERO 2.2L HIGH NOX
Posted to Emissions Forum on 9/21/2009

Well said, Kelly, and I support what you are saying here.

Possible, but unlikely.

There are much more likely and common scenarios for this problem.

I think we are focussing too much on the 'excess O2' rather than the real NOx problem.

Best Regards, Login to read more.