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Old 03-01-2013   #15
Z51JEFF
 
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Join Date: Dec 2007
Location: Fremont, CA
Posts: 3,093
Default Re: Failed emissions, high HC and NOx.

My car failed a few times.I replaced both 02 sensors and put in 5 gallons of E85 and it finally passed.Not looking forward to the next test.In Ca they keep lowering the MAX levels allowable.My car with 6000 original miles wouldn't pass the current levels which are 502 MAX Nox,at 6000 miles the car had a Nox level of 702.Ca keeps lowering the MAX limits.
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