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mikefocke · 12-02-2009, 05:18 PM

let the codes the ECU is sending be your guide.

And, if it is saying there are problems with all 4, then there may be a problem like the AOS that is causing the sensors to be contaminated.

And, while I'm at it, you can use the Bosch part numbers rather than ordering Porsche labeled parts...since Bosch makes em for Porsche.

Part numbers here

12-02-2009, 05:18 PM	#3
mikefocke Registered User Join Date: Aug 2005 Location: Sanford NC Posts: 2,567	But you don't have to replace all 4 let the codes the ECU is sending be your guide. And, if it is saying there are problems with all 4, then there may be a problem like the AOS that is causing the sensors to be contaminated. And, while I'm at it, you can use the Bosch part numbers rather than ordering Porsche labeled parts...since Bosch makes em for Porsche. Part numbers here