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1.6 tdci Engine malfunction message after oil change

Barladavid
Barladavid
in Ford Focus Club

Featured Replies

Hi 

I have a 2013 Ford Focus 1.6 TDCi titanium and I have the following problem:

I am after oil change. From this oil change, after every first start at the morning (cold engine) approx. 30 seconds later I got yellow "Engine malfunction Service now" message and the power is decrease. When I restart the engine, the fault is cease. Has anyone any idea?  Other problem is the ambient temperature sensor malfunction. Displayed temperature is much lower than real temperature. any idea?

  • Quote


    The temp sensor fault can happen when unplugging the MAF for oil filter change.  No-one seems to know why.  It should sort itself out eventually.  But if it's been a few days then check the MAF is actually plugged in properly.

    You would have to have the fault codes read with a Ford specific reader to determine why the engine service message is coming up.

  • Quote
    • Author

    Thank you for your answer. I readed out the ecu; It was supriseingly fault code free 😕 

  • Quote
    3 hours ago, Barladavid said:

    I readed out the ecu; It was supriseingly fault code free 😕 

    Using a generic code reader will not get you all of the Ford specific DTC's. 

    You need to use FORScan or a Ford diagnostic code reader. 

  • Quote
    • Like 1

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