Race ECM tuning

Discussion in 'Buell' started by Scrounger, Oct 28, 2009.

  1. Scrounger

    Scrounger Active Member

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    When you add the race ECM, I've been told the throttle position sensor or throttle itself needs to be adjusted. What exactly has to be done when you get your hand on the race ECM and have it installed.

    Thanks.

    Matthew
     
  2. Hoople

    Hoople Account Removed

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    The throttle position sensor is a potentiometer or variable resistor. It is mechanically coupled to the throttle body butterfly. You must synchronize (or adjust) this mechanical information to the ECM so that when the butterfly is fully closed, the ECM sees that as a "Zero" reading and when the butterfly is 100% open the ECM sees that as "WOT" position.

    The adjustment you make assures that the ECM knows what "Closed " is and what "WOT" is.
    The process to perform this adjustment varies according to the brand or make of the system.

    Hoop!
     
  3. Scrounger

    Scrounger Active Member

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    Hobbit

    The bike is a 2006 Ulysses and I bought a Buell Race ECM from ebay. Was told I would need to do more than just plug and ride.

    Matthew