Throwing a Code need Help

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05-31-2004, 09:43 PM

SynicalWS6

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Throwing a Code need Help

I am throwing code P0420A, any ideas of what might be causing it?

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05-31-2004, 09:47 PM

Turo

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i believe that means it detects that your cats are "inefficient". do you have cats on there? if you do, they might need replacing. for future reference, here is a list of the DTC's from the hptuners website http://www.hptuners.com/dtcs.htm

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05-31-2004, 09:49 PM

SynicalWS6

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I have Cats on, could this be a 02 sensor problem?

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05-31-2004, 09:52 PM

ahowudoin

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More than likely its converter time. How many miles do you have on them?

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05-31-2004, 09:55 PM

SynicalWS6

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I changed my Cats not to long ago so I dont think it is that. I have a total of 10k on the new ones.

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05-31-2004, 09:56 PM

SynicalWS6

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thanks for the help.

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