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Re: Bad Cat no P0420 code
Posted to Technical Discussion Forum on 10/14/2008 1 Reply

Peter,

Allen is correct when he says that Alldata has a very complete guideline for running the monitors.

I had a 1997 Mazda Protege that the customer couldn't get any of the readiness indicators to go complete.

Alldata says that one of the MODE 4 enabli... Login to read more.

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