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JBurer JBurer is offline
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Join Date: Nov 2008
Location: Austin, TX
Posts: 205
Apologies, I got my problem area wrong - it was CO that was the issue, not NOx.

The emissions tester gave me an "aborted attempt" to give me the opportunity to clean it up before the actual test was performed.

The tech was not able to give me the 2-step results, but he ran the car on the rollers to show me where I was in relation to the targets.

Does the issue being CO give a different direction?
Thanks for the help.

Originally Posted by DailyDriven'88 View Post
How far off are you? Post all of your results (HC, CO, NOx etc) along with the limit that you're allowed.

High NOx levels are caused by excessive combustion temperatures. Do whatever you can to bring them down (richer mixture, back off timing, etc). Carbon buildup is also a huge contributing factor. Dont get crazy with the adjustments, as doing so can cause you to fail other aspects of the test.
Old 10-03-2009, 08:03 PM
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