Po420 Engine Code

Author Timothy Heathcote IV 05 Nov 2023

Check engine light code po420 I have an ongoing po420 engine code on my 2002 nissan frontier(2.4). i I'm having a problem with a 1997/98 bravada. it has a po420 engine code.

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I got a check engine code po420, has anyone had the same problem ? if

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