just replaced O2 sensor p0130 bank 1 and 2 days late have engine noise (hum) that gets louder with acceleration and lessens when deaccelerating. what could be cause of this? I read something about relearning?
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need help engine loud engine humengine noise
Posted 19 August 2017 - 02:54 PM
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Posted 19 August 2017 - 03:14 PM
If the 12 volt battery was disconnected the engine has to re-learn all of its operating parameters. I'm not sure how long that takes.
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