My EJK install and impressions

[wferrari]

I live in Italy and I was experiencing the stalling issues before installing the EJK.

 

[hasenpfeffer]

Mine shows "Map II" when the dash is cycling.

This doesn't mean anything. It's simply an LCD display check.

 

[drzcharlie]

I'm thinking that my dash flashed Map I before I had it mossed. Maybe I'm wrong?

 

[hasenpfeffer]

I'm thinking that my dash flashed Map I before I had it mossed. Maybe I'm wrong?

Very likely it said Map II before as well.

 

[isldtime]

Sure would be nice if you could press a couple of buttons on the dash and see what your software version was.
When I asked my selling dealer if they had the Moss Tool they just said "what???"

 

[drzcharlie]

Well at least you have a Husky Dealer. Mine was a BMW/Husqvarna dealer. When the Italian Husky deal went down they lost their franchise. No matter though, my warranty expires in about a week anyway.

 

[nev..]

I'm thinking that my dash flashed Map I before I had it mossed. Maybe I'm wrong?

During the test pattern every possible LCD display is illuminated, so it will have always had Map II. On the TR650 the Map I or Map II is never displayed during normal operation. The dash was originally created for the Nuda, which has two power maps available to the rider. On the Nuda the M button on the dash changes between Map I and Map II (one is full power, the other is for wet weather). This explains why the Map II is on our dash, and also why we have the M button which is used for nothing else except changing the time on the clock.

 

[drzcharlie]

Thanks Nev, I didn't know that.

 

[dmw_az]

I noticed last night as I drove away from my parking spot at work that the bike felt like it was trying to die on me again. I have completely removed the O2 sensor and there is a plug in its place, so I wouldn't think that the ECU would be able to re-learn and remove the EJK's settings. I'll keep monitoring it, but I hope that this is not a sign of what to expect.

 

[mag00]

During the test pattern every possible LCD display is illuminated, so it will have always had Map II. On the TR650 the Map I or Map II is never displayed during normal operation. The dash was originally created for the Nuda, which has two power maps available to the rider. On the Nuda the M button on the dash changes between Map I and Map II (one is full power, the other is for wet weather). This explains why the Map II is on our dash, and also why we have the M button which is used for nothing else except changing the time on the clock.

HMMM, I'm going have to get that feature working on mine.

 

[broadwayron]

Update...
I rode 600+ miles this weekend and it was in the 20's in the morning... no problems whatsoever. Not sure if the temp makes a difference, but thought I'd mention it.

 

[drzcharlie]

HMMM, I'm going have to get that feature working on mine.

Hmmmm, the eprom in the ECU is probably waiting for activation...ya think? From the Nuda Manual:

 

[isldtime]

That would be too simple and would have leaked from someone from Husquvarna Italy.
But we can dream!!

Did you try it yet??

 

[drzcharlie]

I am still contemplating this. I wish I could get my hands on a schematics for the dashboard and the ECU and we need to know more about the ECU.

 

[hasenpfeffer]

I thought the Nuda used a different ECU.

 

[drzcharlie]

It probably is.

 

[wferrari]

Update...
I rode 600+ miles this weekend and it was in the 20's in the morning... no problems whatsoever. Not sure if the temp makes a difference, but thought I'd mention it.

I came to the conclusion that humidity plays a bigger role in the engine behavior compared to the temperature, probably because it's one of those variables out of the ECU control once the lambda is disconnected. These days we're having cool temperatures and constant rain, and I'm experiencing some lean popping, but fortunately no stalling or stumbling whatsoever.

Hmmmm, the eprom in the ECU is probably waiting for activation...ya think? From the Nuda Manual:

I'm really failing to see the necessity of having a rain map for the TR650, considering that the Nuda does not have traction control, and the map II basically just brings the power down to around the tr650 levels. Our bike is very, very controllable in the wet as it is IMHO.

 

[drzcharlie]

wferrari,

Think about what you just said. Humidity causes problems with this bike. I've said that from the beginning. Now factor in a rain fueling map and perhaps it wasn't for traction control but, more for engine control to keep it running correctly. This is precisely why I got curious. I am a realist and understand that Nuda and TR are likely not the same configuration ECU's but why did the Nuda get two maps? I'm guess it was to change engine behaviour in cold and wet conditions.

 

[broadwayron]

Does rain count as being humid? I rode in the rain this weekend with zero engine issues (except, I was cold).

 

[wferrari]

drzcharlie,

I placed both statement in the same reply, but in reality they are quite unrelated. The Nuda has a second mapping to emulate the other Italian supermotards with similar engine performances, sans the traction control, in order to make it controllable under slipping conditions. It's not a way to tell the engine to adapt to a different climate condition, just the road one, by simply cutting off power. You would use the same mapping in the desert if the tarmac has a lot of sand in the surface, for instance. Keep in mind that the Nuda has almost twice the power of the TR at the wheel, and weights just a tad more.

In any case it's not like I was having problems in high humidity, just that the engine was acting differently. Water drops are not compressible and slow down the fuel ignition, and without the O2 sensor telling the ECU to change the AFR ratio (and maybe injection/ignition timing), a change in behavior should not be that surprising.