2003 Volkswagen Jetta Had Garge Check Codes Engine Light Came On They Found

2003 VOLKSWAGEN JETTA
60,000 MILES
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I had a garge check the codes when the check engine light came on and they found P0420, catylst efficiency low,bank 1. What does this mean?
Nov 12, 2012 at 11:29 PM
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WRENCHTECH
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99% of the time it means you need a new Catalytic Converter on Bank 1 which may be the only one.
Nov 12, 2012 at 11:38 PM
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CARADIODOC
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There's no change in the composition of the exhaust gases taking place in the catalytic converter. Time for a new one.
Nov 12, 2012 at 11:39 PM
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EXOVCDS
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2.0L engine? Burning oil? City driven only?

Thomas
Nov 13, 2012 at 12:09 AM
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