Oxygen Sensor

Moved from Forum Technical Support

They should last longer then that but they only cost about $80.00 and you can change them in about 10 min with one wrench.

.

I can work on cars. My question is, how do I know which sensor to replace? I would tend to replace the forward two without a diagnostics reading.

The diagnostic should tell you which sensor failed. If you don't have a scan tool, they're fairly cheap. Also, spring for an o2 sensor wrench, they're well worth it!

Thanks jfkmk!

Why do you think the O2 sensor is bad?

Perhaps it is doing what it is supposed to do...tell you when your air to fuel mixture is bad and polluting the air.

I too had O2 sensor Check Engine Light problems and replacing the O2 sensor didn't cure the problem. Cleaning the MAF (Mass Airflow Sensor) corrected the problem.

So I'd suggest a $10 can of MAF cleaner might help you out.

If your handy I would buy the socket and do a search online for the sensors, and save yourself a wad of money. There is more than one manuf.of what you need, they even have wiring connection kits to match your stock wiring harness. Good luck, Dave

Some fuel additives will kill o2 sensors

Thank you all for your input.

Roadrat