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Re: Toyota Camry Keeps giving code po420 every 6 days or so
Posted to Technical Discussion Forum on 9/5/2007 10 Replies

I understand what you are saying, however, I have dealt with this code on several different vehicle makes and thus far, it has never been the converter. In every instance it was an O2 sensor not switching fast enough. The slow switching might allow the O2 sens... Login to read more.

10 Replies Received (View Replies)