Mechanics

CODE P0420

1999 Honda CRV

Computer problem
1999 Honda CRV 4 cyl Four Wheel Drive Automatic 180000 miles

what does this code mean? I think it needs a regular maintenance but I am not sure.
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Eguzman72
June 2, 2010.



Hi eguzman72,

P0420 = Catalyst efficiency below threshhold.

Usually this means the catalytic converter is bad. It is not a regular maintenance item.

KHLow2008
Jun 3, 2010.