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Re: failed emissions. high nox = 2.71 needs to be 2.50 max
Posted by lms (more from lms) on Mon, 22 Oct 2007 15:13:13
In Reply to: failed emissions. high nox = 2.71 needs to be 2.50 max, kent, Mon, 22 Oct 2007 11:15:08
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As you probably know, high nox means a lean condition. There are lots of variables.
Simple things. Make sure the coolnat system is clean. Turn heater on when taking test so car runs colder. If they test on dyno, make sure your tires are inflated to 45 psi or more. Since it's running lean, dump low octane in it and if it was me I would dump techron in it to clean combustion chambers. Then drain oil and make sure car is the best tune possible. Look for any vacuum leaks.
I do not have your car, so others will chime in on other major things to look for
posted by 24.148.28...
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