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09 oxygen sensor

Joined Jun 2009
45 Posts | 0+
Merrimack,N.H.
does anyone know what the thread pitch is on this? I would like to plug it,and then cover everything with some DEI pipe wrap.
 
You do know that the efi system requires the o2 sensor to operate properly?
 
I dont think it is used in the USA models.it is there but not connected to the system
 
sounds odd! Ill check the thread and get back to you tomorow
 
Here in the United States the 09 bikes were not EPA legal due to the gas tanks not being sealed. And were therefore deemed closed course machines. That being the case, the US bikes were delivered what can be called a "competition map".

The 02 sensor was required under the Euro II emissions regulations to maintain set emission standards.

The 2010 bikes with their sealed gas tanks are now EPA legal, and thus are delivered with a emissions compliant map. I do not know the technicalities of how it was done, however, one will notice that none of the 2010 bikes come with an 02 sensor.

I too will be removing my 02 sensor in the near future just have not got around to it yet. The main reason I am going to remove mine is that the 02 sensor has a heating element in it that I believe is still active, and is also still connected into the fault coding of the engine management system. Therefore, since it is not in use I don't want anything that will bring in a fault code should one be detected in the 02 sensor, nor do I want this heating element drawing power during start up.
 
First off, Thanks for the e-mail Dale!

The question I have is will there be a code if you disconnect the sensor?
 
06z said:
First off, Thanks for the e-mail Dale!

The question I have is will there be a code if you disconnect the sensor?

According to the information I got from headquarters there should not be. I might go ahead and give it a go since I have the tank off at the moment. If not now in the near future.

Either way, you can just leave it for now since you'll be under warranty. I don't think there is anything to had by removing it performance wise. Once you read through the codes you'll see what I mean about possible fault codes this little guy can throw. So since it's not being used might as well eliminate that possibility.

I will post as soon as I try disconnecting it and going for a ride.
 
So if the O2 sensor is not used on the US models then the "idle for so many minutes to relearn" is not valid either since there is no feedback. So if any mods are made to change air fuel ratio (exhaust, etc.) then one would have to get the tool/software to make the necessary changes to the cal?
 
Back to the original post. Instead of header wrap, has anyone done a ceramic type coating (jet hot, hpc). I didn't know if they lasted on dirt bikes due to rock chips, etc. The header wrap looks good though. I need to do something also to keep pine needles from roasting on the pipe.
 
Joel.e said:
So if the O2 sensor is not used on the US models then the "idle for so many minutes to relearn" is not valid either since there is no feedback. So if any mods are made to change air fuel ratio (exhaust, etc.) then one would have to get the tool/software to make the necessary changes to the cal?

To my understanding that is not necessarily true.

The "burn in" utilizes the intake air temp sensor, manifold absolute pressure or map sensor, throttle position sensor, coolant temp and engine speed to set the air fuel mix as it correlates to the "competition map". It should also be noted that the "burn in" is only required or advised if one greatly changes the operating conditions in which the bike is being used. For example: If the bike was being ridden at sea level and 70 degree's, and then it was taken up to 9,000' feet and 90 degree's, that is a significant change in density altitude and one would be well served to do a burn in to let the bike figure out where it's at.

As one rides throughout the day these sensors keep up on what's going on with the ambient conditions and change the air fuel ratio accordingly. As I have stated before, the bike runs the same all the time, whether the engine is warmed up, or really hot from riding a tight technical section. It is truly amazing. Unlike riding a carb'd bike, where when the bike get's hot you can feel the response get mushy or lazy, and then get crisp again after the motor and carb cool down again.

Only if there was a significant change to the motor or exhaust would the need for additional changes be required. It is the same with the suzuki, or honda. Just adding a slip on exhaust is not going to throw things out of whack so badly that a change would be required in the 3D mapping. If one were to up the compression ratio then I would say yes.

On the contrary, if the lambda sensor was active, the bike would immediately compensate for changes in ambient conditions.
 
Joel.e said:
Back to the original post. Instead of header wrap, has anyone done a ceramic type coating (jet hot, hpc). I didn't know if they lasted on dirt bikes due to rock chips, etc. The header wrap looks good though. I need to do something also to keep pine needles from roasting on the pipe.

I had thought about doing a coating on my older bike. Again, as I understand it, when the pipe get's hot the coating can be comprimised. And by that I mean if you get some pine needles on it, it will discolor the coating. I don't know about chipping.
 
Hi Guys,

I seems like there is a bit of guess work going on here!

It would be nice if we could get some accurate info from the factory or some one who knows for sure what is going on with the engine management on our toys.

Steve
 
tazer said:
Hi Guys,

I seems like there is a bit of guess work going on here!

It would be nice if we could get some accurate info from the factory or some one who knows for sure what is going on with the engine management on our toys.

Steve

Hi Steve,

Although I can kind of see where you would think there might be some guess work going on here, please see this thread: http://www.husaberg.org/index.php?name= ... torder=asc

And since then I have learned what I have passed along in this thread. As far as the 02 sensor goes, I have contacted Husaberg North America about it's removal and that information, although paraphrased by me, is what has been told to me by the "factory'.
 
So I am confused, and excuse me if this has been asked already - but if the O2 sensor isn't used, why was it included? It isn't a cheap part?
 
CodeMonkey said:
So I am confused, and excuse me if this has been asked already - but if the O2 sensor isn't used, why was it included? It isn't a cheap part?

Because it's cheaper to produce one model. The total production run was 3300 units, with only 500 coming to the states. There were 2200 450's and 1100 570's produced in 09.

Just like the 08 models, which had the richer closed course jetting b/c they were not EPA legal b/c they did not have the sealed gas tank. The 09's had the same dilema, emission legal in a lot of other countries, including Europe, so they just gave us the richer "competition" mapping.

It's also my understanding that the 2009 US bikes came with lights and they were removed before distribution b/c it is illegal to sell a dirt bike with lights when it is not EPA legal.

Enter the 2010 model. It is EPA legal, has the sealed tank, and for whatever reason the 02 sensor is no longer required in this or other markets to meet emission standards, and is delivered with a "lean" map. As well, the 10's come with lights and brake light switches and are easily streetable in most states, except the Peoples Republik of Kaleeforneahh.
 

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