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o2 sensor bad

  1. 93 Golf Was Bogging Now Not Starting

    MK3
    I have a 1993 MK3 that I just bought about two weeks ago. I have a wide range of knowledge of cars but am completely new to VWs so I'm a tad lost. I know my o2 sensor needs to be replaced. The car was bogging really bad at low RPMs. I cleaned the master air flow sensor and that helped bring...
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