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some_other_dave · 07-14-2009, 03:29 PM

...And stay away from that "upper cylinder treatment" snake oil... A good tune-up should bring the levels closer to where they should be. Pulling the WAI will probably drop the NOx and raise the HC/CO a little.

-soD

07-14-2009, 03:29 PM	#8 (permalink)
some_other_dave Master EcoModder Join Date: Jul 2008 Location: Silly-Con Valley Posts: 1,479 Thanks: 201 Thanked 262 Times in 199 Posts	...And stay away from that "upper cylinder treatment" snake oil... A good tune-up should bring the levels closer to where they should be. Pulling the WAI will probably drop the NOx and raise the HC/CO a little. -soD