code 155 came up diagnostic

2000 CADILLAC DEVILLE DTS
150,000 MILES
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KENTHILL
  • MEMBER
  • 1 POST
changed sensor check engine light still coming on changed spark plugs car runs good what could be the problem
Feb 3, 2012 at 10:52 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Verify the code again-if its the caused that the CEL is coming on-
Feb 3, 2012 at 10:54 PM
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