Question about 1995 Jeep Grand Cherokee

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My son had the catalytic converter cut off and installed flow master exhaust. Now the fuel mileage has tanked!! No gas smell in the oil but you can smell it in the exhaust! I'm assuming hes screwed the computer due to the oxygen sensors being left out of the system!! Help, what can I do to fix the problem??

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Put a dummy converter on it , Clean out all the insides out of a old one and reinstal oxygen sensor to the dummy. Then reset you ecm. good luck hope this helps.

Posted on Mar 27, 2011

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