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I have a '96 Outback, 113,000 miles, and the 'check engine' light came on. Computer says faulty catalytic converter(s), to the tune of $600. Another mechanic suggested trying a product called "Emission Pass". Has anyone ever heard of this, will it do anything, or am I out $600? Must say I've sunk a head gasket into this car already and am not sure what to do. Other than various engine problems, (burns oil), the car is great. But it's no fun wondering if the engine is going to die.


Aprreciate any thoughts!


Thanks, Holly

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The operation of the cat is verified by the rear O2 sensor, so if that sensor fails the code for the cat could be triggered. I would start with the O2 sensor, it's much cheaper.

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