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Avensis Verso Oxygen Sensors

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2.0 VVTi, 2003 Avensis Verso

Engine warning light came on and diagnosed at Toyota Garage as the oxygen sensor T89467-44030. Subsequently was advised that this is B1S1. Is this correct and which one is it?

I had thought that cylinder 1 is on left hand side (when looking at engine from infront of car), but have seen reference to B1S1 on RHS...

Will engine warning light re-set automatically once faulty sensor is replaced? If not, how can I re-set? Will disconnecting the Battery work?

Having run without this sensor working for some 10 months, will catalytic converter be damaged?

Any help or comments much appreciated.

Thanks, Jim

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Just guessing here, but wouldn't think the catalytic converter should have taken any serious damage,

and suppose the check engine light will go out when disconnecting the Battery.

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