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Exhaust sensors? 2015 Focus 1.5 tdci Zetec S

nwsavvy
nwsavvy
in Ford Focus Club

Featured Replies

Hi all. A query please. I am wondering what the 3 sensors on the exhaust manifold are?

Are there 2 sensors lower down and possibly a temp sender at the top, the one with all the wires.

the 2 lower ones have a blue wire to the top one and the lower of the 2 has a green wire as in the pic.

The larger and top of the 3 you can only make out the hex right at the top.

Thanks all.

 

IMG_0384.thumb.jpg.c748ce55e8e9473fe0c46eba51a3bd29.jpg

  • Quote


    Wideband lambda at the top.

    Pre-cat temp sensor in blue.

    Post-cat temp sensor in green.

  • Quote
    • Author

    Hi Tom. Many thanks for that info. just need to  cost them up now and get some ordered. No lights or anything so just thinking ahead.

    Cheers and regards

    Barrie

  • Quote
    13 hours ago, nwsavvy said:

    Hi Tom. Many thanks for that info. just need to  cost them up now and get some ordered. No lights or anything so just thinking ahead.

    Cheers and regards

    Barrie

    I would suggest leaving well alone, until you have a problem.

    As long as you are using the car correctly for a diesel (not all short journeys), it's relatively rare to get problems.

  • Quote
    • Like 1
    • Author

    Hi Alan. I agree, I was only getting all info together for future reference. I have ordered a set of sockets in case I may need them😂

    Thanks all

    Barrie

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    • The Digestive Forum Roundup (24th May - 31st May 2026)

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