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post cat o2 sensor

stickman

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Location
Cumbria
Car
Accord 2.0 vtec
Hi All,
Recently had new middle and back box exhaust fitted,all was well but only for a few miles as the engine management light came on .
Mech said it was the post cat 02 sensor and that as it only monitors the efficiency of the cat all will be fine.
Must say that car runs normally just wondering why light came on when all I had was a new exhaust put on.
Had the above confirmed by Honda mech and said if you can live with light showing on the dash ok,jst blank it out with some black tape.
If I decide to replace sensor any idea of price and where I can get one.

Thanks
 
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