VW Forum banner

o2 sensor 0171

  1. 2001 Passat 1.8L Turbo Error Code 0171

    A month ago my check engine lt. went on - Advanced Auto checked it out and told me to run some injector cleaner in gas (he did not give me error code #). I did once, and the light was off until today (3 fillups since). He checked it again gave me error code 0171, and said it might be the O2...