I have an 04 CTS and recently I change the spark plugs but I had problems removing one of them, the check engine light was on before I change them and is still on now. I just got the emissions test done and failed. The code was P2229: Biometric Pressure Circuit High. If any of you guys are familiar with that code, can you please help me out before I go to the dealer and spend my life savings.

Thanks a lot guys

 

my book says:

Possible ECM issue, possible a short to ground, possible a short to power on BAROMETRIC signal wire, possible defective BAROMETRIC sensor.


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