Well for the THIRD time in 3 months, my CEL is on again. Everytime it has been a bad 02 sensor. THE SAME ONE. Its a 99 Carrera 4, with 94K miles, but the new engine has 20K miles on it. The dealer has to email Porsche and ask for advice, they cant find anything mechanically wrong, yet it keeps blowing the same 02 sensor. Any ideas????? This is killing me, now I'll be probably be in a Sentra rental until sometime next week.....Only good thing is its under warranty.....

 

What do you mean the sensor is blown? What is the code? The only way the sensor could BLOW is for it to be shorted. If the sensor circuit was shorted, it would also blow the 30 amp fuel fuse in the footwell.

 

Make sure they check the bellows tube.

 

Sorry...the code says the CEL was caused by the 02 sensor...so they keep changing the sensor and withing a few weeks, the CEL goes on again, and the code is the same 02 Sensor.

 

Thanks to McKenna they got my car dome friday....It was a wire shorting, no mechanical issue, just an electrical thing.....Again...done under warranty.