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DPF Soot Load

  • 19-03-2025 12:23PM
    #1
    airliebeach
    Registered Users, Registered Users 2 Posts: 65 ✭✭


    Hello All,

    I'm trying to fix my smax 2011.

    Had several dpf warnings up including limp mode.

    Eventually cleared them down using Forscan after I cleaned the dpf filter.

    BBut I'm stuck with the soot load % at 300%.

    I can't seem to reset it using Forscan.

    Has anyone managed to clear this before?

    Cheers.



Comments

  • #2
    mk7r
    Registered Users, Registered Users 2 Posts: 997 ✭✭✭mk7r


    You need to successfully complete a forced regeneration after the DPF has been cleaned



  • #3
    PukkaStukka
    Registered Users, Registered Users 2 Posts: 2,254 ✭✭✭PukkaStukka


    The soot loading is a calculated value. What's the problem history, and what's the differential pressure in the DPF now ?



  • #4
    BlakeS94
    Registered Users, Registered Users 2 Posts: 1,401 ✭✭✭BlakeS94


    Most common causes for DPF issues on that era of Fords is the DPF vaporiser, and the pipes going from the pressure sensor into the DPF can crack. Cleaning it won't do anything if the problem isn't fixed

    Check the differential pressure. Soot loading is only a calculated value over time



  • #5
    zg3409
    Registered Users, Registered Users 2 Posts: 7,293 ✭✭✭zg3409


    What is mileage of car? It's likely dpf is full of ash (ash does not burn off like soot) which cannot be removed, so dpf will need to be replaced. Also as said the small hoses that go from exhaust to differential pressure sensor go hard and break, but often because DPF is full and back pressure is high. Using forscan you can graph differential pressure while driving the car.



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