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Discussion Starter · #1 ·
Just a heads up if you own a Rexxer Evo and have not yet updated the firmware. The latest firmware which I just downloaded now allows you to reset the service indicator. Good to know as one of the reasons I bought the unit. This feature was advertised when the units became available for the Scrambler last year but only now has that feature been added. Better late than never I guess ....
 

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When does the service light turn on? My first time I saw it was at 1000km.. I had it serviced by Ducati and I'm now at 7800km and it hasn't turned on again.
 

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Discussion Starter · #3 ·
When does the service light turn on? My first time I saw it was at 1000km.. I had it serviced by Ducati and I'm now at 7800km and it hasn't turned on again.
Think it is around the 12000km mark
 

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Hi Tony

I've been following the Rexxer conversations with interest. I, like you I assume, don't like the idea of the cost of a one off ecu flash when the Rexxer unit cost is not more than two reflashes.

I found this link and wondered if it is the same as yours. It comes with three maps preinstalled. Did you use the preinstalled maps? Or did you have custom maps created specifically for your setup? Do you think it will it make much difference which slip on is on the bike (there are so many)?

Rexxer Programer ECU Tune Download

Can you add maps as I would like to permanently store my original (current) stock map and even add to it if my service dept downloads a new one from Ducati.

Thanks

Edit: I did find Tony's set up in another thread so I removed that question.
 

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Discussion Starter · #5 · (Edited)
Hi Tony

I've been following the Rexxer conversations with interest. I, like you I assume, don't like the idea of the cost of a one off ecu flash when the Rexxer unit cost is not more than two reflashes.

I found this link and wondered if it is the same as yours. It comes with three maps preinstalled. Did you use the preinstalled maps? Or did you have custom maps created specifically for your setup? Do you think it will it make much difference which slip on is on the bike (there are so many)?

Rexxer Programer ECU Tune Download

Can you add maps as I would like to permanently store my original (current) stock map and even add to it if my service dept downloads a new one from Ducati.

Thanks

Edit: I did find Tony's set up in another thread so I removed that question.
Hi and yes I got the unit as I find it better value.

It is the same unit I have that you have linked to but they do not specifically say how many maps are included in the price.

The unit must first be used to read existing oem map which you email to them. This allows them to match your unit to your ecu as you can only use on one ecu but you can get unit reset if you sold on in future so it can be used on other bikes. They then email you back the file you had sent which contains your new and old maps.

Map files can be stored on your pc so at anytime you can upload or download files between pc and unit hence you can upload any new oem map applied at service time and save it to pc.

Get a couple of custom maps based on your set up included in the deal. Any future maps will cost extra so think ahead or wait till you made changes to bike. A custom map based on an exhaust with out cat, aftermarket air filter and 02 sensors disabled is what I now run and very happy with how the bike pulls and runs now.

Most slip ons are similar and just state if your new slip on retains or removes the CAT when you fill out the form
 

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Thanks Tony. I spoke to the Aust rexxer rep today and he was very helpful and knowledgeable - as you'd expect.

I have read previously it is important to keep the O2 sensors working to ensure no damage to the engine. (for example - http://www.ducatiscramblerforum.com...-discussion/22529-i-emailed-booster-plug.html).

What are your thoughts on disabling the O2 sensors and the long term ramifications? The rep today gave advice completely contrary to the above link.

Also, saw you wrote this in another thread:

"I have 4 maps on my unit as follows:
1. Stock map
2. SC Projects Conic with DB killer, BMC race filter, 02 sensors enabled
3. SC Projects Conic with DB killer, BMC race filter, 02 sensors disabled
4. SC Projects Conic without DB killer, BMC race filter, 02 sensors disabled"

How do you find the difference between maps 2 and 3? That is, what difference do you notice when the O2 sensors are the only variable changed?

Ta
 

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Sorry to butt in TC3 but I have a Termi slip on and a Rexxer map. The Termi upmap provided is rubbish IMHO. My bike once the Rexxer was uploaded without the O2 sensors being disconnected, was horrible. My dealer forgot so I did it myself and blanked them off and enjoyed instant improvement in tractability and grunt. Gary at Rexxer Oz has it right.
 

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Discussion Starter · #8 ·
Yep you should blank off the 02 sensors if you run a map that has them disabled :)
 

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Discussion Starter · #9 ·
Thanks Tony. I spoke to the Aust rexxer rep today and he was very helpful and knowledgeable - as you'd expect.

I have read previously it is important to keep the O2 sensors working to ensure no damage to the engine. (for example - http://www.scramblerforum.com/forum/engine-technical-discussion/22529-i-emailed-booster-plug.html).

What are your thoughts on disabling the O2 sensors and the long term ramifications? The rep today gave advice completely contrary to the above link.

Also, saw you wrote this in another thread:

"I have 4 maps on my unit as follows:
1. Stock map
2. SC Projects Conic with DB killer, BMC race filter, 02 sensors enabled
3. SC Projects Conic with DB killer, BMC race filter, 02 sensors disabled
4. SC Projects Conic without DB killer, BMC race filter, 02 sensors disabled"

How do you find the difference between maps 2 and 3? That is, what difference do you notice when the O2 sensors are the only variable changed?

Ta
Rexxer Germany advised me if I want the engine to breathe and perform better, to disable the 02 sensors so you get rid of the closed loop system. They run their own bikes without 02 sensors and these guys know their stuff. I know plenty of people who have been riding on disabled sensors for years and not 1 has advised against it. You will have to decide for yourself but my bike is now running richer as it is not being strangled to meet emissions and to me thats a good thing.

Map 2 gave the torque curve a nice spread as removing the CAT I found the bike had an uneven spread of torque and you also can tell the throttle response is a bit smoother. Map 3 improves on those points and you can feel stronger pull as you accelerate especially as revs climb at higher speeds.
 

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Hi again Tony. Been a while but I have replaced the exhaust, added a performance air filter and bought the RexXer unit. Wow. Cheers for your advice, the bike is amazing. A quick question on your maps above - much difference between 3 and 4? Performance and fuel economy?
 

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When does the service light turn on? My first time I saw it was at 1000km.. I had it serviced by Ducati and I'm now at 7800km and it hasn't turned on again.
First light, 600 miles (1000km), second light 7500 miles (12,000km) and then every 7500 (12,000km) from there.
Second service is the more expensive 'desmo' valve check service, and then it alternates between that and the basic oil service every time.

Basic oil service needs doing every year anyway if you don't cover 12,000km. Belts need changing every 2 years or 24,000km. Whichever comes first.
This is all in the handbook, to make sure you don't miss anything.

My Rexxer map has the 02 sensors disabled but I've not heard anything about it then being a good idea to blank off the sensors. I assume they won't be causing any problems staying there, as they aren't doing anything...
 

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First light, 600 miles (1000km), second light 7500 miles (12,000km) and then every 7500 (12,000km) from there.
Second service is the more expensive 'desmo' valve check service, and then it alternates between that and the basic oil service every time.

Basic oil service needs doing every year anyway if you don't cover 12,000km. Belts need changing every 2 years or 24,000km. Whichever comes first.
This is all in the handbook, to make sure you don't miss anything.

My Rexxer map has the 02 sensors disabled but I've not heard anything about it then being a good idea to blank off the sensors. I assume they won't be causing any problems staying there, as they aren't doing anything...
The sensor leads should be unplugged? This disables the SAI by default and your Rexxer should work to its full potential. I blanked off the sensors but it is the unplugging of the leads that sorts it
 

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The sensor leads should be unplugged? This disables the SAI by default and your Rexxer should work to its full potential. I blanked off the sensors but it is the unplugging of the leads that sorts it
The advice I was given, by the RexXer dealer, was to disable (unplug) the sensors in order for the bike to perform to its potential. Presently mine are unplugged but I will remove and cap them when I get a chance.
 

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The advice I was given, by the RexXer dealer, was to disable (unplug) the sensors in order for the bike to perform to its potential. Presently mine are unplugged but I will remove and cap them when I get a chance.
Interesting. I've noticed my new map is a little rough around 4000rpm, I'm wondering if that's why...
 

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Discussion Starter · #15 ·
Hi again Tony. Been a while but I have replaced the exhaust, added a performance air filter and bought the RexXer unit. Wow. Cheers for your advice, the bike is amazing. A quick question on your maps above - much difference between 3 and 4? Performance and fuel economy?
Hi and good to hear you are happy with the set up too.

I only ran 3 tank fulls through the bike on the 4th map. From memory I recall the bike had a lil more urgency when accelerating but the fuel economy did suffer even more and the bike was running a lil too rich for my liking which you could smell easily... far happier with map 3 :)
 

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Discussion Starter · #16 ·
Far as I am aware you just need to disconnect the 02 sensors plugs and it makes no difference if you remove the actual sensor or not but of course if you do you must fill the hole left with a blanking cap.
 

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Discussion Starter · #17 ·
Interesting. I've noticed my new map is a little rough around 4000rpm, I'm wondering if that's why...
Josh if you have left the sensors attached and have not disconnected the black wiring block for each sensor then Rexxer state you do need to do this. You can leave sensor in place as long as the electrical connection is broken
 

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If you have the ecu flashed and want to remove the sensors there's a guy on eBay that sells the blanking plugs plus washers separately or a kit with the blanking plugs and plastic caps that fit into the wiring loom.
The kit may seem a little costly but I think it's worth it as it seals the wiring loom joints and the front header looks a dam sight better without the sensor and cable.

Geoff.
 

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So what's going to be the downside to leaving the 02 senors connected here then? I asked during the mapping if it was a sensors on or off map, and they said off. Will leaving them connected have turned them back on?

I hadn't really considered unplugging them until now. The only hiccup in my fueling at the moment is a slight surging at 3800-4000rpm when cruising at steady revs. Considering every other spot in the rev range is smoother and stronger, I didn't really mind.
But now I know about this, I wonder if that's the emissions stuff trying to do their thing...
 

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So what's going to be the downside to leaving the 02 senors connected here then? I asked during the mapping if it was a sensors on or off map, and they said off. Will leaving them connected have turned them back on?

I hadn't really considered unplugging them until now. The only hiccup in my fueling at the moment is a slight surging at 3800-4000rpm when cruising at steady revs. Considering every other spot in the rev range is smoother and stronger, I didn't really mind.
But now I know about this, I wonder if that's the emissions stuff trying to do their thing...
I waited before replying as I was hoping someone who really knows what they are talking about would first. Anyway, I'll give you my understanding, for what its worth. A fuel map that has the O2 sensors turned off means the fuel map doesn't need/rely on the feedback from the sensors in order to alter/monitor the fueling. It doesn't actually turn them off. So the map doesn't need them but they (O2 sensors) still send signals to the ecu potentially confusing it if they remain connected.

Not sure what just disconnecting them now would do. Part of the reflash involves clearing the ecu adaptive parameters. Someone in the know will have to tell you if that needs to be done for you again if you simply disconnect the sensors after having used them with a disabling map. I suspect not but then why would RexXer suggest doing it in the first place? I really do not know the answer.
 
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