O2 sensors

Asked by NuBreid2 Oct 30, 2017 at 06:06 PM about the 2006 Chevrolet Impala 3.5L LT FWD

Question type: Maintenance & Repair

Information on when to replace O2 sensors

2 Answers

F_O_R answered 7 years ago

A mechanic could hook up their computer to your car and read the fuel trims and other data and tell you if the O2 sensors are good or not.

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159,355

Bob answered 7 years ago

Change them at 100,000 miles for most efficient operation. The O2 sensors get slow as they age.

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