Quote:
Originally Posted by Chrysler kid
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Considering you would want to superheat your exhaust to run leaner, you can safely assume at your mileage that since you are not suffering from loss of power, that the catalytic converter material has broken internally. ...
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I don't know. The code is intermittent. I get it. I clear it. A few days or a week later it maybe comes back. I think it has been a week now and couple hundred miles without it lighting up. If the CAT were as damaged as you are suggesting, wouldn't the failure be more complete? I think maybe my head gasket failure bummed up the CAT. Maybe it is clearing itself over time? Ever seen that happen?