O2 Sensor Help
#1
O2 Sensor Help
Well, i hooked my truck up to a scanner because of such bad mileage. and the o2 sensor in bank 1 section 2 or side 2 whatever it is called, had no voltage at all, which is the downstream o2. The check engine light is not on, and I was wondering if I should replace it or not? I also had a lazy o2 sensor which was replaced, and i was told that the downstream o2 sensor will not effect my mileage at all. What is your guys opinion? Thanks
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