TuneECU for 990 - got tunes?

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by jetpoweredmonkey, Oct 31, 2010.

  1. MotorOlly

    MotorOlly Sand basher

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    Spark01 sorry to hear about your troubles, not had any myself with latest version of tuneecu, can update everything fine as far as I can see but I've only been building my own maps, never from other bikes.
    Regarding the map sensors it sounds a lot like miscalibration. Doing both adaption resets did wonders to my bike, actually solved all the problems you're describing BigT, so long as done to the letter as on tuneecu site.
    My latest theory hehe is the temp change as the.bike warms up over the 15mins affects the map sensors, maybe others too, recalibrating allows the ecu to get a new base line. If u swap sensors the calibration will be out. this is also why there is a step in throttle response at low revs unless calibrated, its the map sensor getting 'on to the scale'. Feel free to pick holes in it but it seems to hold true so far :)
    Olly
  2. deksawyer

    deksawyer Adventurer

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    In my quest to find a smoother running 06 UK 990 Adventure (with Akras & baffles) I planned on using Tune ECU to load the Akra map and have a play with some sensors, switching them on/off to see how it ran.

    It turned out the bike already had the Akra map with the o2 & EPC sensores switched off, but it was as jerky as hell in first with an on/off throttle situation further up the revs. I tried with the SAI off with the Akra map and it wasn't much better.

    Now, I've found a great combination. STD 06 map, with SAI, o2 & EPC off - everything else as it came. Runs very smooth and very little on/off throttle or jerkyness. It does feel a bit vibey, the engine that is, but that's maybe because I can now hold steady revs without it hunting, or maybe it;s just in my mind. I'm hoping it's not running too lean - I managed just over 165 miles on near as damit a full tank mostly on narrow twisty roads.

    Anyone else run with a similar set up? Any issues? Anyone have a tweaked map I can try?

    cheers

    D.
  3. big-t

    big-t Been here awhile

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    @ Spark01

    I've not done much with the ECU on the KTM,but I have a fair amount of experience with automobile computers and every time things start going wonky with one of them I do a hard reset.

    Disconnect the battery and anything else connected the bike and let it set for a while,plus check your power and grounds.

    Also make sure the input device has been rebooted.(your PC)

    It often seems like the ecu gets overwhelmed with the changes being made and retaliates by locking down sections.
    Drives me nuts at times..:lol3

    Hope this will help
  4. Spark01

    Spark01 V-Twin

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    I know what you mean:lol3 :cry

    Didn't try the battery disconnect....
    Everything else.... i and the tuner allready tried.
    Tommorow i going to stop by the tuner again, if the dyno isn't used then i try this as the very, very last option.


    I also got a PCV on order (which wasn't my first choice) but i don't trust the combination (mine ECU + tuneecu) at this moment.
    And i want to make a perfect setup on my bike in combination with a CPR filter (not half work!!).
    Maybe if the hard reset works i will sent the PCV back.

    But i don't want a half work around by lowering the F-L switch point to 1-2% and than make inaccurate adjustments to the L-map so it won't run lean.





    As for the tollerance between the MAP sensors.. i don't really care as long as they are stable.
    The bike is adjusted per cylinder anyway
  5. bikyto

    bikyto Dans le doute...gaz!

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    That's a bummer Spark01.
    let me know how it goes. I am building a new map with a CPR as well that I am testing. I usually run with a MH.
    I run a datalogger to follow my af/r and my changes in tuneecu are responding well.

    Have you tried a difference ECU? it's a long shot but I can't think of anything else that could be wrong.
  6. MotorOlly

    MotorOlly Sand basher

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    Hey Spark01
    Did doing adaptions not sort out the sensors? No change at all?
    Just a thought but if you have miscalibrated sensors is there an area of your fuel table the.bike never runs in ie no values never reach it? Could this be the area.that seems.to have no affect.on your engines performance? Just a thought :)
    Personally I'd stay away from PCs, its a very 'second hand' way of tuning :/ maybe a new.ecu is even.cheaper anyway?
    All the.best sorting it, Olly
  7. tahoeacr

    tahoeacr Long timer

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    Change your F-L switch to 1800rpm. 0 above that. Tune both cylinders in F maps all rpm. The F-L map will still be active above that RPM but only when you nail the throttle. It won't be switching when your just cruising and still be working for accelerator inrichment. I go real lean under 20% for mpg. This works well as there is too much fuel in the F-L maps when closing throttle. This is the quickest way to tune for smooth throttle and make a great map without buying stock in a dyno:eek1.
  8. Spark01

    Spark01 V-Twin

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    I tried the battery disconnect yesterday but:cry

    I disconnected the battery for some minutes and started my laptop.
    Then i loaded the stock mapping in to the bike
    Started the bike and started looking at the AFR monitor.

    The bike did first run a high idle (because it was cold) and the AFR was very rich.
    But as the engine warmed up and the rpm's dropped the AFR became low.
    1:15-1:16 at 1400-1500rpm with a MAP reading round 400-450hpa.

    I shutdown the bike increased 8% round that area, reloaded the mapping and started the bike again.
    At first it looked that it worked, but couple of seconds later again the AFR dropped till 1:15-1:16?(rpm and Map reading was the same area).

    So i don't know what this ecu is doing with the values that i'm putting inside those L-maps.
    But i don't like it


    P.S
    I didn't do a 15min idle after the map loads!.
    But i don't see any reason why it should be done, the only improvement a 15idle makes (my experience) is that the throttle reaction is more smooth after performing the procedure.
    But in this case i don't even touch the throttle.
  9. tahoeacr

    tahoeacr Long timer

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    So, sit back, take a big breath, relax and read what you just wrote. What did you learn from this?

    Tune the F1/F2 maps not L. How much are you increasing by? 200-300 does next to nothing. If you add fuel at 1500-1800 rpm 0% TPS in F1/F2 it will increase A/F @ idle.
  10. grinns

    grinns Semper Fi

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    Check the holes in the throttle boddies, mine got covered with old gas junk because it wasn't ridden much and ethanol helped dislodge it....

    Cleaned the TB's and wow it runs good!
  11. Spark01

    Spark01 V-Twin

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    For Tuneecu we needed to modify the L-map? changes to F map didn't work at all for the low rpm's? (we tried +10%)
    As for Tuneboy it gives a balloon in the L maps which says: this fuel table is used when the throttle position is below 6%

    And for the information we tried both (but tuneboy i didn't try after the reset)

    what kind of value do you advise then?


    Any point of view is good.
    As the PCV is still on back order so a there is still some time to try......
  12. tahoeacr

    tahoeacr Long timer

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    You have to change the F-L switching point first. Change it to 0 on everything above 1450. This will allow you to change the F1/F2 maps at lower settings without the L map taking over. The L map will still be active above that but not as much.
  13. Spark01

    Spark01 V-Twin

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    We finally found a work around:clap
    (it took some times because of holidays and etc)

    OK what is the problem: the front cylinder doesn't change air/fuel when we try to commit a trim only on this cylinder.
    The rear cylinder how ever does change when we try to commit a trim.

    We had this fault with Tuneecu and Tuneboy.



    But yesterday we tried a trim at both cylinders at the same time and.............the front cylinder air/fuel changed:eek1:clap

    So what we are going to do is first build a map for the front cylinder by using the trim on both cylinders.
    And when finished we're going to fine tune the rear cylinder with a single trim, because this one works.

    Oke it costs some extra time to do it but it works and no more need for a PCV :evil.
  14. Yascher

    Yascher Been here awhile

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    Mine behaves strangely, when changing maps:
    1-when you open file it doesn't show which map it is, only when selecting it from the list
    2-once downloaded successfully, it will not change map name in the ECU, even after 15 min idle. However values in the tables seem to change, so my ECU always showing that it has 09 Acra map, while actual one is completely different

    Any ideas or similar simptoms?:huh
  15. Spark01

    Spark01 V-Twin

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    Did you perform a read after the download?.
    Because the value's on the left side in tuneecu will usually change only after a read (at least my bike)
  16. tahoeacr

    tahoeacr Long timer

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    Crap that's alot of work! End result will be worth it.
  17. Rsquared

    Rsquared Echo

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    If I wanted to force the secondary butterflies open with the software vs. pulling them out to see the difference, is this where I would set them?

    [​IMG]
  18. Alleycatdad

    Alleycatdad Unbunch yer panties!

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    Well, if you really want to simulate complete removal, you'd set all the fields at 100.

    S
  19. Yascher

    Yascher Been here awhile

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    Sure I did, no luck so far with any combinations and it is an obvious glitch to me
  20. MotorOlly

    MotorOlly Sand basher

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    Good work Spark, if it shows up doing a read though that is a good way for other people to check to see if they are having the same problem.

    Re. Setting secondary butterflies to 100% don't forget you will have to refuel the engine to compensate for this change or it will lean out.

    Tried a leaned out 2011 map hybrided with my 2008 yesterday, did seems less snatchy even without resetting the adaptions but super rich idle. Interesting to note the very different F-L Table, 2ndary Butterflies and Ignition curves, I do wonder if this has more to do with the 'snatch' than fueling... maybe more work due here.