Author Topic: Oxygen sensor bypass  (Read 899 times)

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July 03, 2017, 12:46:40 AM on

Offline DavidR8 (OP)

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Having grown tired of lurching along in the 2000-3000 rpm range while in traffic on my '06 Tiger 955i I bought a O2 sensor bypass thingy.
Installed it this morning. 
In a word: wow. What a difference. Smoothed out the idle and no more lurching along. Smooth as butter in traffic. 50 kmph at 2500 rpm is completely smooth.
So good. Not sure why I waited so long!


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July 04, 2017, 08:35:37 PMReply #1 on

Offline Chris Canning

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I've had a long running love hate relation with my 02 spuffer because while it does what you say in the traffic kills the motor when your making an effort because it doesn't spin up with anything near the gusto it has with it removed.

July 04, 2017, 09:20:16 PMReply #2 on

Offline Ossian

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I've removed the lamda on mine as well, however, although the bike is running and starting just fine, I feel that I'm missing something. Should I have retuned, or done some start-up rigmarole to get the engine to self adjust or something ?

July 05, 2017, 07:51:47 AMReply #3 on

Offline Bixxer Bob

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Best approach is to reset the ECU by blowing in a clean fresh map using TuneECU then immediately fit the bypass thus locking the map in the clean condition.  It won't then tune itself to the optimum, but it won't hesitate as much either.
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July 05, 2017, 01:06:00 PMReply #4 on

Offline DavidR8 (OP)

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Best approach is to reset the ECU by blowing in a clean fresh map using TuneECU then immediately fit the bypass thus locking the map in the clean condition.  It won't then tune itself to the optimum, but it won't hesitate as much either.
That's exactly what I did. My bike is fresh out of the shop where the ECU was flashed.

There might be a slight difference in how the engine spins up however I'm willing to accept the trade off.


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July 05, 2017, 02:22:25 PMReply #5 on

Offline Chris Canning

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There might be a slight difference in how the engine spins up however I'm willing to accept the trade off.


And that's thats rub,I'm lucky having an early 955 it takes me around 5 seconds to fit or unfit the plug its just behind the engine block and over years have tried it any number of times when I've forgotten what it does but always go back to stock but for any one doing lots of traffic obviously an option.

July 28, 2017, 02:20:02 PMReply #6 on

Offline DavidR8 (OP)

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And that's thats rub,I'm lucky having an early 955 it takes me around 5 seconds to fit or unfit the plug its just behind the engine block and over years have tried it any number of times when I've forgotten what it does but always go back to stock but for any one doing lots of traffic obviously an option.
Its far better in traffic especially two-up.


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