2006 Cadillac CTS Error code

2006 CADILLAC CTS
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MWATTERSON
  • MEMBER
  • 40 POSTS
My car has detected, po522 is this a serious problem.
Thanks
May 20, 2015 at 4:57 PM
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HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
check your engine oil or it may be a bad sensor or short in system
May 21, 2015 at 6:02 AM