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Engine codes ,will fail emissions.

Klaus, I did find a leak/broken hose in the rear, near the fuel filter. I replaced that, cleared the codes, and the car passed emissions.
Five days later the check engine light went on again. And now I have po442 and po 422 showing again. Would you at this point try replacing the rear O2 sensor?, and why not the front O2 sensor.






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New Engine codes ,will fail emissions.
posted by  Kenzoil  on Thu Aug 18 19:40 CST 2011 >


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