TFI and O2 sensors

[bah rk]

Hello again, any one can explain to me why i should disconnect the O2 sensor cable if am running TFI on my bike (2009 FLHX)??
and how it will work with the SE PRO EFI SUPER TUNER with stage 1 download??

Regards,

 

[Chopper]

Hello again, any one can explain to me why i should disconnect the O2 sensor cable if am running TFI on my bike (2009 FLHX)??
and how it will work with the SE PRO EFI SUPER TUNER with stage 1 download??

Regards,

If you are running a super tuner you do not want a TFI and if you have a TFI you would not be running a super tuner. They are two different fuel management systems. the TFI is a fueler and the SEST is a tuner that adjusts fuel & timing.