Chuck1 Posted June 18, 2012 Share Posted June 18, 2012 About 5 years a ago I replaced a failing battery. About a week later an oxygen sensor failed. Two weeks ago I had to replace the battery and a week later an air-fuel ratio sensor failed. Is there some step in the replacing battery procedure that I need to be doing, or are these failures just coincidence? Quote Link to comment Share on other sites More sharing options...
Filehorse Posted June 19, 2012 Share Posted June 19, 2012 Unless there were smoke and flames involved when you replaced the batteries, this should be simple coincidence. There is nothing about those two components that should be sensitive to properly changing out a battery. Quote Link to comment Share on other sites More sharing options...
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