Anyone doing current reflash?

bgilreath

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Anyone doing current reflash on the Tenere? I didn't see where Anthony had any recent activity.
 

gunslinger_006

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Same for Nels at 2wheelDynoWorks. He just did mine. Flawless result.






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gunslinger_006

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Interesting how he left the 02 sensors in place. The guy who dyno developed my flash (Chris Steedman, CJS Performance) had me remove them, said that they provide feedback to the ECU to keep the fueling in the EPA range.
So your o2 is used for closed loop. That is when the bike is idling hot, or in neutral, or a few other times of low load. They are almost always narrow band o2 sensors and therefore of limited use.

The bike will go to open loop under just about all other times iiuc.

You absolutely can remove the o2 and use open loop mapping for everything. Its a viable option.

Personally: I prefer to keep closed loop operations, as its really handy to keep the bike idling smoothly over altitude changes (i.e. i want the bike to idle right at 12,000 ft even if I tuned it at sea level). Air gets thin at altitude, and your bike wont know it if you use open loop for all operation.

Both are good, totally just a matter of what you prefer.


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twinrider

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So your o2 is used for closed loop. That is when the bike is idling hot, or in neutral, or a few other times of low load. They are almost always narrow band o2 sensors and therefore of limited use.

The bike will go to open loop under just about all other times iiuc.

You absolutely can remove the o2 and use open loop mapping for everything. Its a viable option.

Personally: I prefer to keep closed loop operations, as its really handy to keep the bike idling smoothly over altitude changes (i.e. i want the bike to idle right at 12,000 ft even if I tuned it at sea level). Air gets thin at altitude, and your bike wont know it if you use open loop for all operation.

Both are good, totally just a matter of what you prefer.


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I just followed the tuner's advice. It runs great everywhere and at every altitude.

Come to think of it, ECUnleashed did the flash on my last S10 and didn't mention removing the 02 sensors. Gotta say though, my current flash is much better but that could be the result of that flash being developed on a dyno.
 

gunslinger_006

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I just followed the tuner's advice. It runs great everywhere and at every altitude.

Come to think of it, ECUnleashed did the flash on my last S10 and didn't mention removing the 02 sensors. Gotta say though, my current flash is much better but that could be the result of that flash being developed on a dyno.
I hear that that is a great tune. We used Flashtune, and i love the results.


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MattR

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Interesting how he left the 02 sensors in place. The guy who dyno developed my flash (Chris Steedman, CJS Performance) had me remove them, said that they provide feedback to the ECU to keep the fueling in the EPA range.
Chris now leaves the sensor in place but switches them off in the ecu


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bimota

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Interesting how he left the 02 sensors in place. The guy who dyno developed my flash (Chris Steedman, CJS Performance) had me remove them, said that they provide feedback to the ECU to keep the fueling in the EPA range.
cjracing did mine as well on the dyno for 4 hrs i rode it to him, my o2 sensors are still in the pipes but not plugged in at the leads
 

MattR

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I think if you unplug them on the Euro 4 motors the ECU brings up a fault. So he now leaves the connected but switched off


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bimota

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I think if you unplug them on the Euro 4 motors the ECU brings up a fault. So he now leaves the connected but switched off


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i don,t know what my 2013 gen 1 is euro wise but i know he had it for over 4 hrs on the dyno and the o2 sensors are plugged in down at the headers but not plugged in at the leads he tucked them out of the way

rob
 

twinrider

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I did my 2015 in 2018. He told me to completely remove them and install blanking plugs. Haven't seen any sign of an error.
 

MattR

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He said some thing had changed on the 2017 which would bring up a fault on the dash that is very difficult to get rid of if the sensors are just unplugged.


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MattR

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I contacted Chris about this and this is what he said:

“Your bike. I killed the oxygen sensor active area mapping. They now never activate or work. But if you unplug it you will likely get a code.”

“So to speak . There are different ways to delete O2 sensors. Not all tuners use the same way. Some don't even know what way they have used. Because a plug and play flash tool doesn't explain that.”

Hope this explains it better than I did.


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