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-   -   Question on Boxster 02 Sensor (http://forums.pelicanparts.com/boxster-cayman-forum/755381-question-boxster-02-sensor.html)

boxstergt (guest) 06-11-2013 03:53 AM
What are the correct oxygen sensors for a 99 boxster with a 99 3.4 liter 996 motor. Car has an FVD boxster S exhaust headers, sport cats, muffler with softronic tune. I am getting p1127 and 1129 codes. I was getting codes then they stopped when I had a bad MAF code. I replaced the MAF and now the car is running much better again, but the O2 codes are back.

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Boxster Oxygen Sensor Replacement - 986 / 987

Nick at Pelican Parts 06-11-2013 03:53 AM
Check that the fuel trim is operating normally before replacing the oxygen sensors. You may have a vacuum leak or faulty component setting the oxygen sensor codes. If you find they are bad, give our parts specialists a call at 1-888-280-7799. They can help you find the right part.

- Nick


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