Oxygen Sensor Warning Light

[Topless]

Hey guys, are you sure your O2 sensors are bad? Have you tested them? They are designed to trip a CEL if they sense a mixture problem beyond what the DME can compensate. If you have not yet read the codes/tested the sensors you may be shooting the messenger instead of fixing the problem. Food for thought.

[smartguys]

Yes, sorry, forget to mention - the dealer noted at my 70,000 mi service that it was in need of replacement. I chose to save the $425 ridiculous amount they were asking to do replace it -- the $799 for the service was enough.

Thanks for pointing out/Kelly

[Topless]

Dealers will often tell you that you need new O2's when you get a CEL. Mine said I needed all four at $1200. They were wrong. It was a bad MAF. I fixed it myself. 6000 miles later and no more CEL... car runs like new.

What error codes did they get?

[smartguys]

Originally Posted by Topless

Dealers will often tell you that you need new O2's when you get a CEL. Mine said I needed all four at $1200. They were wrong. It was a bad MAF. I fixed it myself. 6000 miles later and no more CEL... car runs like new.

What error codes did they get?

They did not tell me the code, just that they needed replacement.

[Topless]

If your CEL is still on, take your car to Autozone and they will read your codes for free. Report back here. Without knowing the codes and model yr we are just shooting in the dark.

[schoir]

Originally Posted by smartguys

Yes, sorry, forget to mention - the dealer noted at my 70,000 mi service that it was in need of replacement. I chose to save the $425 ridiculous amount they were asking to do replace it -- the $799 for the service was enough.

Thanks for pointing out/Kelly

Kelly:

You can avoid wasting more money by buying the Bosch 02 sensors, rather than the "Porsche" 02 sensors, which are made by Bosch. There is no difference (other than the packaging, and sometimes a 986 part number stamped on it) whatsoever between the two if you get Bosch part number 13806. It has the identical connector with no modification needed.

The last time I bought one from ************************************************************, the Bosch 02 sensor even had the Porsche part number stamped on it. Less than 1/2 the price the dealer wants.

After you get the car up safely on jackstands, it's a piece of cake. Picture unscrewing a bolt from some threads which are mounted on the side of a metal tube, and screwing another one back on. It's that simple, coupled with disconnecting and reconnecting the electrical connection.

Regards, Maurice.