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Engine light keeps coming up

Tina_bx
Tina_bx
in Ford Focus Club

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Hi all, I brought a Ford Focus 1.0 eco boost about 10 weeks ago 1st 7 weeks was fine, until engine light appeared on dashboard took it to my local car garage they plugged machine in which came up with catalyst system efficiency below threshold (bank1) so they replaced top sensor but a few days later light came back on so took it back & they sprayed some foam in to clean cat but a few days later light came back on, car garage says they not sure what else to do, so looking for some advice here please 

many thanks 🙏🏻 

  • Quote


    Reading this article suggests it might have been better to replace the lower sensor. It's an interesting read which you might want to share with your garage.

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