O2 Sensor

[glaus84]

Does anyone know why a vehicle would go through 02 sensors frequently? I've had my truck for 3 years now and it went through 1 if not 2 a year. It's quite an inconvenience, so if anyone knows why or has a solution that would be great.

[Wingnut]

Which 02 sensor? Front or rear?

 

A shot cat could potentially screw 'em up...

 

Have you checked the tune to see what else is going on?

[glaus84]

Which 02 sensor? Front or rear?

 

A shot cat could potentially screw 'em up...

 

Have you checked the tune to see what else is going on?

 

 

I believe i've been through all of them to be honest. I don't think it's the cat, the truck only has 60,000 miles

[Wingnut]

Yeah...I'd get somebody with HP Tuners to do some logging.

 

Mileage okay?

[glaus84]

Yeah...I'd get somebody with HP Tuners to do some logging.

 

Mileage okay?

 

 

mileage is a bit lower than average

[Z'06]

Reinstall your rear O2 sensors with some spark plug defoulers and your problems with rear sensors will go away, at least temporarily, until you can tune them out permanently with a PCM tune.

[Thurman]

Make sure you are getting the correct sensor! Have the truck's VIN used to select the sensor. GM used/changed suppliers during model runs often. At the independent parts store I work at part-time, we use the VIN often to assure the correct part. We are "old school", and use computers, books, and "ancient" wisdom. David

[dewfpo]

Some off the shelf gasoline additives can bugger up O2 sensors if used frequently as well as some silicone gasket sealants.

 

DEWFPO

[thearborbarber]

Or you have another issue that is causing O2 codes.

[redvett]

Antifreeze kills them too.