Questions about O2 sensors...

[papasmurf]

actually just checked the code definition again and it is the post cast (rear) sensor that is indicated by P1117

[JFP in PA]

Originally Posted by papasmurf

actually just checked the code definition again and it is the post cast (rear) sensor that is indicated by P1117

According to the Porsche OBD II diagnostics manual, P1117 is for the bank 1 sensor ahead of the cat......

[Topless]

+1 JFP
O2 sensor heating is most often a wiring issue (rodent damage, chafe, fried wiring touching aftermarket headers). I am also in the "never splice a sensor" camp. For a few extra bucks you can get sensors that are configured correctly for your car and they are plug-n-play. A few ohms due to resistance in a splice can have significant effects on how the car runs and I have seen way too many poorly spliced sensors that promptly came apart once the exhaust system heated up. A proper O2 sensor splice can be done. I just don't ever see them.

[papasmurf]

wrong from another website (rennlist I think). Evidently someone had the wrong information as well and said it was the rear sensor. I am not fond of splicing connectors as well but from the shopping I have done, the sensor with the connectors is about twice as much as the OE sensor without the connector, neither being the porsche "boxed" part.