Question about 2001 Chevrolet Monte Carlo

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Continuous code for cat. seems to plug up

I have a 2001 chevy monte carlo ss. It has 97,700 miles, in the last 2 years it has about every 4 months cut out and fall on its face and has been due to plugged converters. They replaced 4 , the check eng. light never came on till 6 months ago and I replaced the convertor with an after market in hopes it would correct the problem.
It seems to be running rich and sucking mad amounts of air and is now throwing check eng. a lot but low threshold code for convertor.
The car has been to 4 dealers and they did the 02 s and convertors and even took out the auto start saying that was causing it.
I like the car and could use any help or ideas you may have.

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Hard to say i would like to look at it did you check the map & maf sensor are they with in limits

Posted on Nov 23, 2008

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