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  1. 2003 New Beetle, O2 sensor P0038 issue

    2.0 Liter Gas
    Hi, I have got several codes about O2 sensor so I changed the O2 sensor (after the cat). I started the car and clear the code, everything seems good. However, after driver for a while, the engine light was set again and the code is P0038. I can clear the code and it will bet again. Could anybody...