o2 sensor jumped

[handsuuum]

I have a 08 busa and after looking for the o2 sensor wires I found a jumper plug at the connector. Why do they do this and doesn't it mess up the fuel mixture?

would apreciate some advice

[turbobusa2000]

What do you mean jumper plug? More description is needed.

[turbobusa2000]

If it came on the bike that way from the factory, I would say it should be there.

[jsjdjn]

[handsuuum]

yes a factory looking plug in the 4 wire connector that should go to a o2 sensor. It has a short wire in the connector that just loops around to jump 2 of the pins.

[djsin]

because the bikes here in th4e usa dont have o2 sensors but they use the same wiring harness for all of them

[Mr Bogus]

this is probably a gen2 bike?
they all had 02 sensors I am pretty sure.. someone also probably pulled the PAIR system off and then installed the resistor in the sensor connector to keep the FI light from coming on..

I would rather have the o2 system working myself... helps the a/f during cruise etc.. (bypasses at WOT)

[dadofthree]

Sounds like you have an aftermarket exhaust and pc. My O2 was pulled and a jumper installed when my exhaust was installed prior to delivery.

[ResidentEvil]

PCV comes with the jumper plug