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p0134

  1. Questions, Issues or Problems with the New Beetle
    Hi there! I have a yellow CEL, and the codes read as follows: P0134 : O2 sensor heater circ. bank 1 sensor 1 malfunction P0135 : O2 sensor circ. bank 1 sensor 1 no activity detected BEFORE I bring my beetle to a mechanic, I would like to be informed about whats actually wrong with my car...
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