2001 Volvo S60 Trouble Code

2001 VOLVO S60
160,000 MILES • 6 CYL • 2WD • AUTOMATIC
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TAWAN1973
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  • 1 POST
What is trouble code P0420 and how to perform the repairs.
Dec 23, 2009 at 1:00 PM
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BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
DTC p0420 : Three-Way Catalytic Converter Efficiency

Possible causes are an air leakage in the exhaust system or faulty catalytic converter. Check exhaust system for any cracks / holes. If OK suspect faulty cat. converter.
Dec 23, 2009 at 1:17 PM
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