fault code p1312
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Thread: fault code p1312

  1. #1
    i have been told the code of p1312 for saab 93 aero 2003 is that of the throttle body does anyone know any different ? thanks again

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  3. #2
    Super Moderator aerojon's Avatar
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    no,check your plugs are clean & not sooted up,from memory think that code is specfic for the ionization module failure,don't quote me on that..
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  4. #3
    no,check your plugs are clean & not sooted up,from memory think that code is specfic for the ionization module failure,don't quote me on that.. [/b]
    what do i need to do to fix this problem as the car went into limp home mode and just judders after 4 on the rev counter thanks

  5. #4
    Wastegate
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    P1312 is misfire on cyl 1 or 2
    P1334 is misfire on cyl 3 or 4

    Check/Gap/clean or replace the plugs 1st.
    If that does not fix it, then try another DI

    Judder over 4000rpm sounds like misfire under boost.

  6. #5
    Just had that code in my Aero, though there were no other symptoms. Dealer told me I needed a new DI, and I asked for the plugs to be done at the same time.

    I wouldn't delay, as if the DI lets go on the move it can take out the cat.

  7. #6
    thanks for the info turns out its only the plugs ...........

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