Overheated 2013's

[jcthorne]

I'm looking for a fix . . . not a "spend $600 and maybe it will fix it." If I knew that spending $600 would fix the problem, I'd spend it in a heartbeat.

I think there are quite a number of 2013 owners in this predicament. $600 is a lot to spend to try and see if it works. If it was a known fix, I and many others would likely go ahead and spend the bucks.

I do believe the lean run condition is a leading cause of the hot running 2013 bikes. My theory on why some are worse than others is that BRP has them running about as lean at low throttle and idle as they dare push, the difference is in the manufacturing tolerance of the O2 sensors. Where these bikes are running, it would not take much error to make 200 or more degrees of exhaust temp change. I think this anomaly and how best to account for it and still remain EPA legal is the quandary BRP is trying to solve.

The factory PCM is reflash programmable if one had the software tools to do so. If a 'leak' occurred where the encryption for reprogramming the PCM were to become available, the aftermarket would solve this problem very quickly. A simple dyno tune session would fix the bike up. No replacement of parts would be needed. This is exactly what occurs in the Ford aftermarket tuning and many other brands.

 

[Magdave]

I think there are quite a number of 2013 owners in this predicament. $600 is a lot to spend to try and see if it works. If it was a known fix, I and many others would likely go ahead and spend the bucks.

I do believe the lean run condition is a leading cause of the hot running 2013 bikes. My theory on why some are worse than others is that BRP has them running about as lean at low throttle and idle as they dare push, the difference is in the manufacturing tolerance of the O2 sensors. Where these bikes are running, it would not take much error to make 200 or more degrees of exhaust temp change. I think this anomaly and how best to account for it and still remain EPA legal is the quandary BRP is trying to solve.

The factory PCM is reflash programmable if one had the software tools to do so. If a 'leak' occurred where the encryption for reprogramming the PCM were to become available, the aftermarket would solve this problem very quickly. A simple dyno tune session would fix the bike up. No replacement of parts would be needed. This is exactly what occurs in the Ford aftermarket tuning and many other brands.

BUDS is the only communication software with the PCM available. I am not sure how the PCV comms work but I am guessing they are using the canbus system to deliver info to the PCM may be fake (adjusted O2) readings to richen the injector pulse. As far as maps go there is 1 map...period. As you ride the bike it changes to adjust it just like the PCV would do, based on the O2 readings. I am not sure what it is called in BRP terms but in the Corvette world there is BLMs ( Block Learn Modes) that represent the value read and sent to the injector from the ECM. The normal number is 128. Higher is leaner, lower is richer and when you get a dyno tune that is what they are looking to get at different RPMs. At WOT ( or above a certain RPM ) the settings are ignored and the Injectors are pulsed to the max. I Hope this puts to rest the multi map concept there is only one. Now here is what can be wrong and what may be causing lean conditions. That 128 number depends on several inputs mostly O2s and RPMs and has a scaling factor built into the ECM maybe BRP like their bikes to run at 130 so the program tables are filled with BLMs for different RPMs that accomplish that and as it watches the O2 feedback it is looking for an "average" ( O2 sensors jump all over the place they are nowhere near static while an engine is running) return voltage form the O2 to confirm the 130 is what it is running at. If not the ECM will adjust the tables to adjust the injector pulse. All of this is why BRP may take some time to come up with a software fix. It is easier to do each bike than a mass change you have to find a happy medium that is one for all.

 

[jerpinoy]

Why should John or any of the Spyder owner's, with a HEAT ISSUES, have to purchase an aftermarket device to make it right..:banghead: If that might work.

I for one will not do that! It is BRP's issue to make the fix, not mine. To many people think they know how to fix the HEAT issues and are willing to spend their $$$$, if this type of fixes seems to work for them, good.

But then why would BRP make any effort to find a fix if the owners will are willing to do it for them...:banghead:

:agree::agree:and:congrats: We are part of the BRP R&D:roflblack::roflblack::roflblack:
(R&D) Research and development.

 

[Bob Denman]

:gaah: Trying to kick around worthwhile ideas; you guys still keep trying to pee in the pool... :gaah: