2005 Mercury Marquis Changed Catalytic Converter Used Old Sensors Now Engine

40,000 MILES
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ANONYMOUS
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Changed the catalytic converter. used old sensors and now engine light is on
Nov 8, 2012 at 6:11 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
scan for codes to see wher ethe problem is . it could also be an air leak prior to converter.
Nov 8, 2012 at 6:14 AM
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