Re: P0420 Clearing, monitor running

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Posted to Technical Discussion Forum on 3/16/2013 7 Replies

Hello Dave,

I'm sorry if "off-topic".

I have seen similar "unexplained" in Lexus RX300.

Why the result of monitor is PASS, but MIL is ON and ECM memory recorded DTC P0420 with status current/pending/history [1999 Lexus RX300, Emissions Scan Data] , - I d... Login to read more.

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