1999 Sus

Discussion in 'Modifications And Maintenance' started by 02blubru, Aug 14, 2006.

  1. 02blubru
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    02blubru Well-Known Member

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    1999 legacy 2.5l knock sensor CEL

    My sister has a 1999 legacy sus with a 2.5l engine, and here check engine light came on and she had it checked down in rochester where she lives and it came back as the knock sensor. What needs to be done to take care of this? Is this common? Any help would be appriceated.

    Bill
     
    02blubru, Aug 14, 2006
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  2. ShortytheFirefighter
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    ShortytheFirefighter Pokemans. I has none. Staff Member

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    It's an easy fix, the knock sensor IIRC is on the back of the motor, there's just a bolt running through it into the block and it has a wire harness coming off the back of it that just plugs in. If you look at the back of the motor just aft of the intake manifold on the passenger side you should see it. Unbolt it, unplug it and install the new one the same way and that should fix it.
     
    ShortytheFirefighter, Aug 14, 2006
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  3. Substeroo
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    Substeroo Well-Known Member

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    yep that's a common problem that I know of. I replaced mine a couple years ago.
     
    Substeroo, Aug 14, 2006
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  4. AWDimprezaL
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    AWDimprezaL has more posts than you

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    n/a 2.5 Liters go through them like underwear, normal
     
    AWDimprezaL, Aug 14, 2006
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  5. 02blubru
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    02blubru Well-Known Member

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    Thanks guys.
     
    02blubru, Aug 14, 2006
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  6. Deride
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    Deride Well-Known Member

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    Yep, I've thrown 4 knock codes in the past 3 months... I gotta replace mine too. 2.5NA motor, cept mine is like 100 bucks for the sensor!!! =( Oh and if you replace it yourself, DO NOT overtorque it.... be very careful.
     
    Deride, Aug 14, 2006
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  7. 02blubru
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    02blubru Well-Known Member

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    What is the torue setting it should be tourqed to?
     
    02blubru, Aug 14, 2006
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  8. Deride
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    Deride Well-Known Member

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    16 ft/lb I think
     
    Deride, Aug 14, 2006
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  9. FuJi K
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    FuJi K Well-Known Member

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    don't set the torque too high, it adjusts the sensitivity....put it to 10-12lbs.
     
    FuJi K, Aug 15, 2006
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  10. 02blubru
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    02blubru Well-Known Member

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    she says it is actually making a knocking sound. would that still just be the sensor
     
    02blubru, Aug 15, 2006
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