[Jay]

2017 Toyota Camry. Do you guys think I should replace this o2 sensor? The car has 149,000 miles and never changed since I’ve owned it. I put around 104,000 miles on it. No CEL. But lately my MPG has been less. Any advice appreciated-thanks.

[Thomas]

I’d throw a new one in anyways since you’ve already got it out, surely they’re not too expensive.

[Thomas]

Don’t take a chance by only replacing that part. Since it is running just fine with no problems, just replace everything you can think of 😀

[Patrick]

Yes, performance on O2 sensors degrade after about 75000 miles. Long overdue.

[Harry]

To parrot another comment-if it ain’t broke, don’t fix it. Unless you are getting an OEM Toyota sensor, you might cause a problem with some brand aftermarket sensor. Unless there have been other issues to cause its failure, it’s likely to be good for the life of the car. IF you currently have no check engine light on, and you’re able to, monitor live data with a scan tool to verify performance.

[Melanie]

If there isn’t anything wrong with it, don’t replace it. Things I would look at before replacing O2 sensors are: tire condition and set to proper pressures (or slightly higher), spark plug condition (if they haven’t been replaced, that would be the first thing to do), brake condition and alignment. Make sure you are getting gas from a good source…some places have a little more ethanol in their fuel then what is supposed to be and it will burn faster.

[Ryan]

No code, you shouldn’t have touched it. That’s an OG good sensor, it looks hella clean for that many miles. A new one will not help.

[Kevin]

If there was anything wrong with it, you’d have a check engine light, I bet if you check the fuel trims everything will look good, you could consider cleaning it if you’re worried.

[Charlie]

That’s not a Oxygen sensor, that’s called a (Air/Fuel sensor)
It’s a wide band and Toyota vehicles are extremely sensitive to Manufacturers of them, and style (part number)
Make sure to use an OE AFR sensor on these applications.

[Kolby]

Yes, I don’t care what anyone says I’ve had this issue with multiple customers cars of them not replacing them after taking them out and the gasket doesn’t seal because it’s a one time smash gasket, and then it makes the car run like shit.

[Author]

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