Ford Mondeo ST limp mode

Ford Mondeo ST 2006 2.2 155

Car keeps entering limp mode

Diagnostics machine returning errors:
P0409 – P0100 – P0404 – P0409 – P0100 – P0404 – P0406 – P0406

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Mondeoman1 week1 Answer19 viewsMember0

Answer ( 1 )

  1. Hello

    Because the MAF sensor code is a general code, it seemd like there is a problem with your EGR unit and it should be diagnosed first.

    A faulty EGR valve can cause the air mass flow sensor to get faulty values and trigger an error code.

    Should make sure that the EGR valve got power and ground, signals and if that’s correct, try the function of the EGR valve

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