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Electronic fuel sensor

  • 25-06-2015 7:02pm
    #1
    anniehoo
    Registered Users, Registered Users 2 Posts: 6,597 ✭✭✭


    2003 Mitsubishi carisma have it only a few months. There's an electronic fuel gauge sensor as well as the normal one with the needle. The electronic one never seems to correlate with the needle one and doesn't always read it immediately when I put petrol in.

    It's reading now as 27km left until empty despite me just putting petrol in it. If it reaches 0 is it electronically likely to cut out or will the needle continue to read as normal?


Comments

  • #2
    ironclaw
    Registered Users, Registered Users 2 Posts: 8,004 ✭✭✭ironclaw


    The refresh rate on the electronic sensors is sometimes very long (10 mins) so it won't always match the needle. They are generally used for working out the average fuel usage etc so they don't need to be refreshing every second.

    The car will not cut out based on it.


  • #3
    johnayo
    Registered Users, Registered Users 2 Posts: 1,718 ✭✭✭johnayo


    anniehoo wrote: »
    2003 Mitsubishi carisma have it only a few months. There's an electronic fuel gauge sensor as well as the normal one with the needle. The electronic one never seems to correlate with the needle one and doesn't always read it immediately when I put petrol in.

    It's reading now as 27km left until empty despite me just putting petrol in it. If it reaches 0 is it electronically likely to cut out or will the needle continue to read as normal?

    The electronic one is at best, just a guideline. It may well be after cutting out before you reach the zero, and likewise may still be running after going below the zero.


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