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Ford focus persistent engine light

Stevo593
Stevo593
in Ford Focus Club

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Hi all - I have a 2015 focus ecoboost 1litre. Had persistent problems with code 0036 (lambda sensors) and proceeded to full catalytic converter, lambda sensor, spark plugs and air filter change. Now my EMG keeps illuminating with p0302 cylinder misfire, car spent 4 hours in garage and replaced the mass air sensor, no other issues found but after 2 journeys the light is on again. This seems to be an unanswerable issue and I am at a loss as to whether to stick with it having paid over £1000 for repairs or cut my losses and move on. Car drives well and there is no obvious signs of misfiring. Any help on here really appreciated! Steve

  • Quote


    Will probs need a full diagnostic of live data to see whats a miss.

    Is it showing the same DTC on dash as previous?

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    • The Digestive Forum Roundup (31st May - 7th June 2026)

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      The Digestive Forum Roundup (31st May - 7th June 2026) We hope you’re all enjoying your week and finding time for some time enjoying your Ford! This week, our vibrant forum has been buzzing with discussions that touch on a diverse range of Ford models, from the Mondeo to the Fiesta and Focus. Here’s a recap of some key conversations that might pique your interest. Starting with the Mondeo, user Frenchspanner shared a particularly frustrating issue relating to a 'Immobiliser Active' message appea
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