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97 jetta o2

  1. 97 jetta only seems to have only 1 o2 sensor

    hi guys, I have a 97 jetta that has an intermittent o2 sensor which gives me an engine light on and off while on the highway. So when I went to check the o2 sensors there is only an upstream sensor. is this normal? the car was manufactured in Mexico. I believe it should have 2 and there is no...