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Oxygen Sensors
Chevy Silverado
Fuel Economy and Mileage

Where is the oxygen sensor loacted on 5.3l vortech engine code P0430 catalyst efficiency below treshold bank 2?


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Wiki User
March 31, 2008 2:20AM

There should be 4 02's on your vehicle, 1 up stream of each catalytic converter and one located down stream or just behind each converter, your code indicates the right side converter needs replacement due to it's lack of efficiency or minimal operation.