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  1. #1
    ktyamaha36's Avatar
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    How to overide "Overboost" code 'FI" ??

    Is there any way to disconnect/trip the sensor that causes the FI light to come on and set the ski into limp mode during higher than factory boost numbers?


  2. #2
    jlfx car audio's Avatar
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    Theirs several threads and signatures that will show u the light without going broke.

  3. #3
    supermac's Avatar
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    Quote Originally Posted by ktyamaha36 View Post
    Is there any way to disconnect/trip the sensor that causes the FI light to come on and set the ski into limp mode during higher than factory boost numbers?
    we can help and have a proven product that delivers the performance you are after.

  4. #4
    Quote Originally Posted by supermac View Post
    Quote Originally Posted by ktyamaha36 View Post
    Is there any way to disconnect/trip the sensor that causes the FI light to come on and set the ski into limp mode during higher than factory boost numbers?
    we can help and have a proven product that delivers the performance you are after.
    Hey Mac, do your boost modules still come with one plug and the three pins to insert into other end? When I installed mine I found an automotive 3 pin socket that was the perfect match to the original boost sensor which is a Denso part? It keeps it looking smart, wondered if you had tracked down a supplier of them?

  5. #5
    NOIDEA's Avatar
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    All depends on what you want to do. If you don't want to run a manual boost controller, get a Macsboost module. If you don't mind running a
    manual boost controller just run 6 1K resistors between the middle wire of the map sensor and negative. That wil give you a clamp voltage of 3.45V.

  6. #6
    Quote Originally Posted by NOIDEA View Post
    All depends on what you want to do. If you don't want to run a manual boost controller, get a Macsboost module. If you don't mind running a
    manual boost controller just run 6 1K resistors between the middle wire of the map sensor and negative. That wil give you a clamp voltage of 3.45V.
    Would the resistors from sig<->ground put the signal low throughout the range?

  7. #7
    NOIDEA's Avatar
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    All it does is limit the voltage that the map sensor can send through to the ecu. It's like having a map sensor that srops at 3.45V

  8. #8
    NOIDEA's Avatar
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    It doesn't affect the voltage below 3.45V

  9. #9
    supermac's Avatar
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    Quote Originally Posted by Quinnd View Post
    Quote Originally Posted by NOIDEA View Post
    All depends on what you want to do. If you don't want to run a manual boost controller, get a Macsboost module. If you don't mind running a
    manual boost controller just run 6 1K resistors between the middle wire of the map sensor and negative. That wil give you a clamp voltage of 3.45V.
    Would the resistors from sig<->ground put the signal low throughout the range?
    this is dangerous. it can cause your afrs to go lean.

  10. #10
    jlfx car audio's Avatar
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    Just like ur module mac. Urs does exact same thing . just looks nicer and is plug and play .
    Omg ur module hooks up to exact same wires as all other methods do . that's it . that sensor has nothing to do with A/F ratio . nothing .
    The map sensor nearest rear of engine is what controlled fuel ratio (but only up to a point )

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