Denso O2 Sensor Longevity

[calskibum]

Thanks to all the info posted at this forum, I was able to change out my bank 1/sensor 1 today after getting a P0135 code and CEL. The process was very easy and taking the recommendations from people here, I bought a O2 sensor tool and it really helped.

I went the cheap way and used the Denso O2 sensor from Amazon. I've seen posts about concerns that Denso sensors may not last as long as the Toyota ones. For those who used the Denso sensors here, can you share your experience on its longevity? Depending on what people are getting out of these sensors, I may buy the Toyota ones instead the next time a sensor needs to be replaced.

I noticed that the Denso sensor's wiring is longer than the old one that I removed. The vehicle is at 182,000 and I've had it for the last 40K miles or so. Not sure if the old one is the original and I don't see any Toyota markings on it. Do Toyota O2 sensors come with Toyota printed or etched on it?

 

[RobRed]

I went the cheap way and used the Denso O2 sensor from Amazon. I've seen

Ummmm yeah the cheapo Denso sensors are the OEM Toyota.

This should help. http://tlcfaq.com/main/2012/09/oxygen-sensor-o2-part-numbers-and-replacement/

 

[bjowett]

I'm surprised no one is adding heat shields to help with longevity of these.

 

[AimCOtaco]

Not understanding how a heat shield would help. Isn't O2 sensor failure usually due to the eventual clogging of the element by combustion byproducts, mostly occurring at start up when the sensors are too cold?

 

[Slickspawn]

Not understanding how a heat shield would help. Isn't O2 sensor failure usually due to the eventual clogging of the element by combustion byproducts, mostly occurring at start up when the sensors are too cold?

Old school trick my Bosch friend noticed I do and asked if it was to allow a heated O2 sensor to 'heat'. This was basically a habit from when I was a diesel owner...turn key to on. Wait 10 seconds...then start your car. The heated sensors will last longer.