• Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

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O2 sensor and EFI settings

Alberto

Alberto

Husqvarna
AA Class
I have TE250 2011, I got it powered up from dealer, which means the O2 sensor came in a box, removed from the bike, but I would like to have it, I am hoping someone can help me set the bike in a pretty way to have it with good power but at the same time, using the o2 sensor.

Is there any way to set this up? with I-beat or something?

thanks....
 
Why do you want to run the O2??

It will likely run the bike lean & potentially run poorly on the road based mapping....
Doesn't sound like fun to me.
 
"my understanding"

the O2 sensor works differently with the ECU than you think... there's no benefit. The standard mode/EPA/DOT was made with the specific intention of having it "pass" and a vague intention of having it "run". The only purpose of the narrow band o2 is to Lean- so the ECU goes into "can I lean it now? mode...The ECU is basically overwhelmed and real time fueling needs is not primary ...results are constant delayed throttle response- you can't tune that out. Hense- the power up mode which is consistent and can be tuned.
If you want an "O2 sensor" get the power commander V with auto tune, which uses a wide band O2 sensor...
 
understood, O2 does not make my bike to behave better..

my bike is plated, I think it will not pass emissions without O2 sensor, am I correct?
 
Posts like this make me wonder if it's possible to hack the programming of the ECU? I've been told other people do it all the time on other bikes with Keihin FI systems.
 
It is possible but only if you can break the 'electronic handshake' that Husky/BMW load in to stop you playing.
The basic computer hardware is the same as the tunable systems Yami, Honda etc use.
I had thought about fitting a WR450 ecu to my TE449 & trying to tune it that way before I fixed mine with the other mods.

All it should take is the right guy with the smarts, a copy of the HST program & patients.
1000s of car guys hacking software all over the world.
Wish I knew how.....
 
Alberto said:
understood, O2 does not make my bike to behave better..

my bike is plated, I think it will not pass emissions without O2 sensor, am I correct?
Click to expand...

I don't know- depends on your E tests and State- its different or nonexistent everywhere. I wouldn't assume anything. Your bike may have to have everything OEM (cat, charcoal canister, o2) on it regardless of its emissions to be considered in compliance- or just have to pass a sniff test.
 
I would think if the dealer gave it to you plated with the power up kit then you're good to go. Unless you are sure they check emissions with a sniffer in the pipe I wouldn't worry about it.
 
JRW said:
I would think if the dealer gave it to you plated with the power up kit then you're good to go. Unless you are sure they check emissions with a sniffer in the pipe I wouldn't worry about it.
Click to expand...

I think they went first to emissions check, then adjusted and powered it up. That is why I am worried
 
Couldn't you wire in your O2 & jumper plug to a switch the same way?
I don't have your model, sorry, but is that all you do to power them up, fit a plug where the O2 goes???
 
Its pretty trivial to plug the sensor back in and drop the cat back in the mid-pipe for testing...if you have them on hand. Its likely to pass most tests anyway as long as its warmed up and running right. That said, some locales are big on inspecting all the components.

Your testing location makes all the difference.
 
You can run two maps in a Power commander and run a map switch. One map could run no changes at all to the factory fuelling/ignition, the other would be the tuned map for power.
 
Tinken said:
You can make a map for emissions, putting your figures into the negative. After emissions, just delete the map and reload your power map.
Click to expand...


Wouldn't you run a risk of failing the test if running leaner that stock as well.
NOx levels climb quickly if too lean & might not pass the test.
Couldn't the PCV be run as I mentioned with an unmodified set of tables & a power map in the two slots??
 
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