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O2 Sensor Fault?

leesheffield
leesheffield
in Ford Focus Club

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Hi all. Looking for a bit of advice. I've got a bluetooth Elm scanner. Used it with torque app and no error codes came up. However when checking through test results the o2 sensor comes up as not working correctly. Bank 1 and bank 2. (will put a screen shot up in a minute) does anyone know if I should get this checked out and possibly replaced? I noticed yesterday on a motorway run there was a bit of hesitation and juddering when accelerating on slip roads through most gears around 2500 revs. Not had chance to check this out. I don't have any engine faults on the scan or eml light etc. Could this be to do with a sensor not working correctly or maybe a different issue? After 3000 revs it's fine and no problems. Not had that hesitation before so Any advice would be helpful

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    Here is screenshot

    post-47700-144223338153_thumb.jpg

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    Anyone got any ideas please?

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