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May 20, 2004

Emissions Hell

I think the emissions testing station has something against me. At no time in the past many years has the Jeep failed emissions.

It's now failed twice, and I'm not so happy with the "repair" I just had done. $350 took me from passing HC and CO by a huge margin and failing NOx by a small one to failing HC and CO by a huge margin and passing NOx by a large margin.

CO is the worst. Went from 9.03 before the repair to 110.3 afterward. Wonderful.

On the other hand, the NOx is the lowest it's been in the past four years (three emissions tests). It had always been above 2, it was 1.11 at my retest.

As a friend said, emissions tests are like some sort of torturous balancing act. Pass one, fail the other. Adjust it to pass the other, and you fail the first. Half a lifetime later, you might manage to squeak by in all three tests.

I just got off the phone with my service advisor at Earnhardt's, who thinks it may be an oxygen sensor. I hope so. They're not all that expensive. Cheaper than a new catalytic converter, anyway.

Posted by Colin at May 20, 2004 5:45 PM

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