P1507?

Discussion in 'Modifications And Maintenance' started by Dynapar, Sep 23, 2008.

  1. Dynapar
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    Dynapar Well-Known Member

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    My friends 98 LGT ust threw a P1507 code. I have no clue what this is. Does anyone on here?

    The car will shoot to high rpms (2.5k) at start up, higher than the high idle speed. After it warms up it drops back to normal. When it is in gear (auto) the RPMs seem alittle bit low. The car kind of chugs at low rpms under load, like in reverse. It stalled on her once taking off from a stoplight, but started right up again.

    This sounds kind of like a vacuum or IAC problem. Does anyone have a different prognosis?
     
    Dynapar, Sep 23, 2008
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  2. Deride
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    Deride Well-Known Member

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    I'm guessing the IAC or the wiring for it.
     
    Deride, Sep 23, 2008
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  3. silver03
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    silver03 Well-Known Member

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    I had this with my impreza...IAC.
     
    silver03, Sep 23, 2008
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  4. WRX1
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    WRX1 _ Staff Member

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    Idle Control System Malfunction (Fail-Safe) (Subaru)

    Right out of the obd-II code listing.

    Russ
     
    WRX1, Sep 23, 2008
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  5. Dynapar
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    Dynapar Well-Known Member

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    Thanks all.

    Is the Idle Control System Malfunction (Fail-Safe) (Subaru) different from the Idle Air Controller? or are they the same thing?
     
    Dynapar, Sep 23, 2008
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  6. Deride
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    Deride Well-Known Member

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    Same thing
     
    Deride, Sep 23, 2008
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  7. Ej22TIM
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    Ej22TIM Well-Known Member

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    if you need an iac I have a few.
     
    Ej22TIM, Sep 23, 2008
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  8. Dynapar
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    Dynapar Well-Known Member

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    I will see if it throws the code again/acts funny. If so I will drop you a line Tim.
     
    Dynapar, Sep 23, 2008
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  9. TSTRBOY2004
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    TSTRBOY2004 Well-Known Member

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    TSTRBOY2004, Sep 23, 2008
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