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"Aging sensor" codes usually indicate a problem directly related to the sensor, sensor wiring harness or DME issues and not a bad MAF or intake/exhaust air leak. Trace the wiring to see if has been damaged or pinched. Sometimes rodents will chew wiring as it passes through a bulkhead or firewall. There is also a circuit test I have seen in the past from DME to sensor which will help isolate the problem. A quick online search came up empty though.
After a little digging I found this most unusual error code P2096- "Post catalyst fuel trim system too lean bank 1" This is very different than "aging sensor". I would clear it and if it comes back, confirm that it is the very same error code. If it is and your sensors are new I suspect an exhaust system leak on that bank near the sensor. A small hole in the cat would do it.
I hope this helps some.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Last edited by Topless; 07-15-2012 at 12:29 PM.
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