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O2 sensors and CEL
Recently I had a CEL - read the code and it says that sensor 1 bank 1 is faulty. I suppose that is the pre-cat sensor on the left side of the car right?
When I used to reset the codes Before I replaced the sensor, the CEL would come back on almost immediately, now with the new sensor in, it takes abit longer (2 days) for it to come on, but it still does. CEL code is still the same. What could be the problem.
Will a battery d/c for a few minutes reset codes?
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