 Matt Timion w00t 07-27-2006, 11:21 AM
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07-09-2006, 03:47 PM
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#1
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Driving on E
Join Date: Sep 2005
Posts: 3,110
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Just failed emissions twice
My wife's CRX is due for renewal. We took it in for emissions and safety the other day. The emissions as 10mph passed, but failed at 25mph. It failed on the NOx, and was over by around .3 (should be .9, read at 1.2).
I replaced the sparkplugs, warmed up the car and took it back.
This time it was over 2.0 at both 10mph and 25mph. It was also overheating like crazy. YOu try driving home with the heater on in 90+ degree weather in the desert... argh.
Anyway, the next shot is to replace the o2 sensor. I'll use the one from my civic as I don't need it any more. The guy said that my new plugs might not be gapped properly, but I was hoping that wasn't the issue b/c I bought the "pre-gapped" ones. That's what I get for spending extra money on spark plugs.
Can anyone think of what might cause high NOx emissions? Is it possible that it's time for a new catalytic converter?
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