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Fault Code Po155

gsk

By gsk,
in Avensis Club

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gsk Explorer

gsk

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Hi,members hope you can help, i have a 52 plate toyota avensis which is running fine but the engine management light has just come on,i have the code read and it is p0155 oxygen sensor bank 1 can any body tell me what this problem might be, thanks for any replies.

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alan333 Veteran

alan333

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According to info I can access, fault P0155 is "Heated oxygen sensor (H02S) 1, bank 2, heater control - circuit malfunction", and probable cause is "wiring, H02S, ECM"

So I'm guessing it's something to do with a heated oxygen sensor or it's wiring.

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