O2 sensor disconnect

Discussion in 'TR650' started by JimKelly, Apr 10, 2020.

  1. JimKelly Husqvarna
    A Class

    Husqvarna Motorcycle:
    TR650 Terra
    Other Motorcycles:
    BMW R75/5, Suzuki Stinger, Yamaha YB
    Evening. Can anyone tell me how you bypass the O2 sensor? Is it as simple as disconnecting it? Are there any adverse effects from doing so? My bike has had the recall but now I’ve got a problem and I’m trying to eliminate all possible causes. Thanks
  2. wferrari Husqvarna
    AA Class

    Husqvarna Motorcycle:
    TR 650 Strada
    Other Motorcycles:
    V-Strom
    You can disconnect the O2 sensor without any issue. Many people here have it disconnected from day 1, in order to avoid the ECU adaptation. In any case disconnecting it will cause it no harm.
    JimKelly likes this.
  3. WayneC Husqvarna
    AA Class

    Location:
    Sydney
    Husqvarna Motorcycle:
    none
    Other Motorcycles:
    F650GS Dakar
    Disconnecting the 02 sensor puts the BMS-E into open loop, adaptions set in the BMS-E still apply, open/closed loop & adaptions are different subjects but I suspect moving the BMS-E to open loop was what you were referring to :)

    Jim, what is the problem you are experiencing ?
    JimKelly likes this.
  4. sussurf Husqvarna
    AA Class

    Location:
    Port Macquarie area, NSW
    Husqvarna Motorcycle:
    TR650 Terra
    Other Motorcycles:
    Triumph Sprint 1050, Daytona 955i
    I believe the O2 will be damaged as the heating function will be disabled which generally serves to protect the sensor.
    spiderman likes this.