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mikefocke · 09-22-2009, 07:24 AM

Any muffler shop can do it if you don't want to. My last cost $37.50 in labor. I used the Bosch OEM unit as it is the same part Porsche buys. http://mike.focke.googlepages.com/oxygensensors will give you the part numbers.

P1126 is most often an intake air leak.

AOS checked? Other hoses tight?

Done anything recently?

Got a K&N air filter or some other non-standard in the intake stream?

I'd fix the sensor and check the throttle body for oil and reset the CEL maybe even disconnect the battery for a half hour to cause the ECU to have to reset and relearn and drive for a bit and lets see what happens.

09-22-2009, 07:24 AM	#2
mikefocke Registered User Join Date: Aug 2005 Location: Sanford NC Posts: 2,537	Sure the O2 is tired and needs replacing. Any muffler shop can do it if you don't want to. My last cost $37.50 in labor. I used the Bosch OEM unit as it is the same part Porsche buys. http://mike.focke.googlepages.com/oxygensensors will give you the part numbers. P1126 is most often an intake air leak. AOS checked? Other hoses tight? Done anything recently? Got a K&N air filter or some other non-standard in the intake stream? I'd fix the sensor and check the throttle body for oil and reset the CEL maybe even disconnect the battery for a half hour to cause the ECU to have to reset and relearn and drive for a bit and lets see what happens.