Or, you can just replace your O2 sensor (s) at regular intervals, to try and prevent that minor drop in mpg sometimes caused by a "lazy" high-mileage sensor. Simple Replacement ...

Replace both the upstream ones at the same time so the reading will be consistent. You can keep the downstream one on there. The only difference between the two is the length of the wire.<BR><BR ...

A failing O2 sensor can lead to a drastic drop off in fuel economy and performance. Here are our picks for the best oxygen sensor replacements for your car.

When Should I Replace The O2 Sensor? The answer to this question is complex, as these sensors are not your standard maintenance items. No indicator lights on your dashboard or other means could hint ...

The oxygen sensor is an item in a vehicle that gets replaced due to the fault of another component. Just because a fault code indicates an oxygen sensor problem, don't just replace the O2 sensor.

That brings us to the No. 2 slot on the list: replacement of a faulty oxygen sensor, which had ranked as the most common repair previously and for eight of the Vehicle Health Index’s 10 years ...

The oxygen sensor on a cars exhaust is used to determine how efficiently the fuel mixture is to an engine. These can be a real pain to replace, so it can be helpful to fake the signal to the ECU.