Po420 Engine Code

Author Vernice Bosco III 15 Jun 2024

Bravada 1997 sensor oldsmobile code po420 engine oxygen aran I'm having a problem with a 1997/98 bravada. it has a po420 engine code. Have 2002 vw jetta gls. code po420. pid readings are lambda b1s1 .999

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I got a check engine code po420, has anyone had the same problem ? ifFzj80 & lx450 code po420 cel o2 sensor extension check engine Po420/430 code. this is the way you fix it!Have engine code po420,have replaced all plugs and coils.both o2.

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so my check engine light came on and autozone scaned it and said it was

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