PUG rough idle / misfire

Discussion in 'Peugeot 4xx' started by thomastaylor, May 30, 2020.

  1. thomastaylor


    May 29, 2020
    Likes Received:

    Hoping someone can give me some good advice.

    My PUG 406 has a slight misfire. (406 2.0 16v EW10J4)
    Noticeable on startup after standing overnight.
    Error code P0350 ever so often.

    Once it's warmed up it goes away but if I tap my foot quickly on the accelerator
    then there is still a lag on the motor before revving up and then you can feel the misfire.

    It drives OK but sometimes I feel she could have more power.
    I would like to get the problem sorted out.

    Would I be correct in presuming it could be a dirty fuel injector?
    Is a bottle of "injector cleaner" a waste of time?

    Thanking in advance!
    thomastaylor, May 30, 2020
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