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My car has over 200,000 miles on it, the engine runs fine without any noise or shaking of exhaust pipe.
Vehicle: 2006 Saturn, Vue, 3.5 liter engine

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A code for the catalytic convertor , would be a P0420 which is for Bank 1 , a P0430 which is for Bank 2.

​ Faulty rear 02 sensor where the heater internal short will give a false rear catalytic convertor code with out setting a faulty 02 sensor, Here a faulty rear 02 sensor set a catalytic convertor code, this wave signal is a indication of a faulty 02 sensor for the downstream or catalytic monitor sensor, the fix here replace the rear 02 sensor not the catalytic convertor

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