yz454
Member
Just buy the autotune and skip the dyno.
New ECU Flash Option: DIY FLASHING
- Thread starter avc8130
- Start date
The Flash Tune Datalink cable isn't really intended to supply you with a "flash". It is intended to supply you with a TOOL to develop your own "flash".Rodge said:
They do include a base "unrestricted" map to get you started. This map removes the THROTTLE and timing restrictions.
If you decided to go with the Datalink and need help, let me know.
ac
For just an Akra slip on I don't think you will gain much from a dyno tune. Do you feel you have fueling issues right now?jvl said:I hit a couple of issues on my flashing project. First one was that my bike was actually a 2011 bike despite being sold to me from a dealer as 2012, so I have the -00 ECU. I was planning on sending my ecu to be read during the winter so I could flash it for the next season. Luckily someone already did that and the -00 is available in the software. The second issue was that the installation instructions were wrong for the -00 so there was some hassle with that, but I did get the ecu flashed with the bench harness. All I have changed for now is the throttle and fan temps and those worked ok.
I just had 20 000km maintenance done and they increased the CO setting to 12 to richen it up, apparently the plugs showed that it has been running slightly lean. I have the akrapovic slip-on so I guess my next test will be to import the akra map from powercommander. I also have a powercommander for the bike, got it for my troubles from the dealer so maybe I install that aswell and get it tuned at a dyno or something. Local tuner had never seen ftecu program but he was thinking that there should be no problems tuning the bike with that instead of a powercommander so maybe I will see if they can do that for me.
Thanks to whom ever sent their -00 for a read!
You can import the PCV map for the Akra and I bet you will be pretty happy.
Have you worked on throttle maps?
ac
My main issue is the jumpy throttle at low revs and I don't know what causes it and the dealer was not able to do anything about it. Might not be fueling related.avc8130 said:
Only things I have modified so far are the fan temps and the throttle maps. I now have the throttle map value to be directly the value of the throttle no matter what the revs are. The change makes a big difference and the bike feels a lot better with it. I get TCS blinking all the time now.
I got some ideas for changing the throttle more, like maybe I will soften the low rev area and do the opposite for the higher revs. Less aggressive throttle for low revs and more aggressive for high. Have you tried anything like this?
The jumpiness is only with low revs just above 2000 and steady throttle after a little engine braking. This situation doesn't come up that often but when it does, it is very annoying. The bike feels like it can not decide if its supposed to engine break or go. I was also thinking that this might be about the ECU trying to do something with the o2 sensors in a loop that makes no sense for the revs, but this was just guessing. I don't think this could be fixed with throttle maps because it does not happen if I go through the revs with the throttle steadily increasing. The bike pulls fine on flat while idling, but does not do so around those revs (occasionally).avc8130 said:
Hmm. I have some theories on this, but I haven't been 100% able to resolve this myself.jvl said:
You can try changing the TPM vs MAP value in that area. I think part of the issue is the bike switching between MAP and TPS based fueling in that area.
ac
Interesting. I did not know that. Something like that could explain it. Any idea why such a thing exists? I have to admit, I don't quite understand these tables. Is TPS vs RPM for setting the fueling based on throttle position and rpm? then what is the MAP vs RPM?avc8130 said:
btw one difference between -00 and -30 is that in -00 there is no such thing as MAP-TPS Bias.
Directly from FT-ecu.com:jvl said:
The ECU calculates fuel requirements through two methods
1) Speed Density (MAP vs RPM) Under very light load, small part throttle openings, and low RPM the ECU will use the difference in atmospheric and manifold pressure (MAP) to look-up the uncorrected fuel values.
2) Alpha-N (TPS vs RPM) Under mild to high load operating conditions the ECU will use the Throttle Position (TPS) to look-up the uncorrected fuel values.
Notes:
-Fuel values are to be considered arbitrary. The same map value does not always produce the same amount of fuel depending on outside circumstances.
-The MAP/TPS switchover strategy varies by model but generally MAP vs RPM will be used < 10% throttle and under 5k RPM
-Usually a tuner would focus on the TPS vs RPM maps first then possibly move on to tuning the MAP vs RPM maps
The ONLY reason that table doesn't exist in the -00 is because FTECU just didn't put it in the BIN file. If you think it could help you, I suggest you email them and ask them to add that support for your ECU.
ac
Ah yes, it is in the FAQ :-[ Thanks!
I'd like to test setting the bias so that it is always using TPS vs RPM. If that would eliminate the problem I could prove you right. I read about some r1 guy removing o2 sensors and using the bias to make them obsolete (=no error when removed), I also remember reading that you can remove o2 sensors if you do the ecu unleashed flash. These two things make me believe that ecu unleashed might be doing this. This was actually bothering earlier me about the ecu unleashed, how could the sensors be removed and the ecu to leave the closed loop.
I'd like to test setting the bias so that it is always using TPS vs RPM. If that would eliminate the problem I could prove you right. I read about some r1 guy removing o2 sensors and using the bias to make them obsolete (=no error when removed), I also remember reading that you can remove o2 sensors if you do the ecu unleashed flash. These two things make me believe that ecu unleashed might be doing this. This was actually bothering earlier me about the ecu unleashed, how could the sensors be removed and the ecu to leave the closed loop.
I have Arrow headers. I've been fighting surging and fueling "fun" for quite a while. I refuse to accept any burble or bobble. I've read so many reports that "add 5% fuel" and it goes away, but I've been there, tried that, stumbled away.jvl said:
ac
I have the Gen2 ECU-U map and can confirm they have NOT solved this surging with Arrow Headers, the UK ECU-U dealer provided a lot of feedback and did a lot of dyno work with ECU-U using a customers bike and were never able to completely remove the surge.jvl said:
Adding a PC-V and O2 optimisers will sort it out, but I would prefer it if a Flash could work, I also am not 100% happy with the ECU-U wrist-throttle mapping which is a bit aggressive, it feels OK for about 0%-20%, but then feels as if by 50% wrist you have about 90% of available power which in lower gears can make it feel a bit too lively, not so bad where I live, but on my recent Alps trip I wished I had a more linear throttle response.....
.... Oh, and on the other hand the stock Touring mode is way too soft for me, if FT could sort the Arrow fuelling I would ditch my ECU-U flash in favour of an FT kit tomorrow, the ability to get the Throttle mapping exactly as I want it is a big wish for me now.
I may even consider the FT Kit plus the Power commander if nobody solves it soon, I am sure with a PC-V and a bit of dyno time the fuelling would be better than the ECU-U setup I currently have.
Although that assumes FT do a UK compatible kit :question:
I Just received my ECU back from avc8130 less than a week turn around from Left coast to East coast. Will install it on the bike and let peeps know how it works. I had the ECU version 1 which was on the bike when I bought it and didn't care for it at all. would surge and stall @ stop signs after aggressive riding. stay tuned for results.
::015:: Just got back from a short 25 mile ride with the re programmed ECU from AVC 8130 To me this is what the bike should run like from the factory. I chose T enhanced and SS enhanced. pull smooth from bottom to top. Actually accelerates in 6th and peppy upper to edge of power band. Longer trip planned with some mountain twisty roads. I just want to say thanks to Anthony for doing this.
