TuneECU for 990 - got tunes?

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

  1. pdxthmper

    pdxthmper Been here awhile

    Joined:
    Oct 24, 2009
    Oddometer:
    442
    Location:
    Portland OR
    I have had an uneven idle with the bike warmed up the last few times I have ridden, at a stop light it would rise to 2K then drop to 1K and back to 1400, not every time but but often. Didn't notice it when actually riding at speed.
    Today on my morning commute, the idle became somewhat erratic, and I could feel it when actually riding.
    On decel 0% throttle, idle would stay up at 2-3K and drop when finally stopped to ~2K. Slight twist on throttle to start moving again, would drop the RPM to 1k, then pick up quickly.

    Does this seem TPS issue? and to adjust them do i need to remove the airbox? Other thoughts?
  2. RoundOz

    RoundOz Plenty of seasoning

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    Korkin, Check post. #2648 page 265. This is the only app that I have heard works with KTMs

    Sent from my SCH-I535 using Tapatalk
  3. bluesurf

    bluesurf en dos ruedas

    Joined:
    Jun 18, 2004
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    1,053
    Location:
    Taxville
    Quick map question:

    I've recently installed the R map on my '10 990 ADV non-R, and am mostly happy with it. There has been a bit of idle variance, but it's either not consistent or I haven't nailed down the causal scenario.

    The bike will occasionally idle at ~1900RPM after being run moderately (difficult not to do), but generally sits at ~1400RPM by default. When it does idle at ~1900RPM, then after a minute or so will drop to ~1400RPM. This variance was not present before the R map installation, and I'm not sure if the recent hot weather here has anything to do with it. Also, there is now a bit of a catch in the non-return throttle cable lately as well, and I'm assuming that's from those repeated one-wheeled take offs (the bike is approaching 30K miles). The return cable seems fluid and snappy, so while it is a difference, then am wont to discount it wrt the idle issue.

    The bike is essentially stock through the engine, with Wings exhausts with the lower db inserts.

    So, possible simultaneous TPS issue, cable, R map variance, weather or ?

    Thanks in advance for any input.
  4. Gustavo.Ramos

    Gustavo.Ramos Long timer

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    Accross the pond
    Load back the previous map and crosscheck if that idel issue remains. If it does, could be related to TPS... "could be"
  5. Loui€

    Loui€ Rides With Reindeer

    Joined:
    May 23, 2012
    Oddometer:
    92
    Location:
    PoroWaara, Finnmark
    most probably it is TPS.
    hook on tuneecu, and adjust it to .60 V warm engine.

    if it is less - e.g. less than .56V warm you get that behavior, for sure.

    I had .46 warm, and 4500 - 5000 RPM idle, veeery nice in town... :rofl

    removing air box:
    if you have original airbox and torx screw to fix TPS - well well...
    read earlier posts about that;
    I have hexagon screw and ITG foam filter (I warmly recommend it, it is just fantastic!); so plenty of room to adjust TPS.

    btw, basic EU 2008 Akramap (O2 on, SAI off, EPC off) for this setup:
    2*Leo Vinces with baffles + ITG foam filter.
    Perfect driving experience, power from 2500 RPM, torques 6 gear in 3000 RPM cruisin', MPG 47 best, 44 aver. !!! I'm happy to have this great beast to carry me to horizon! :clap
  6. pdxthmper

    pdxthmper Been here awhile

    Joined:
    Oct 24, 2009
    Oddometer:
    442
    Location:
    Portland OR
    THanks for the details. Of course it didn't do it on the way home last night, maybe it just doesn't like going to work?

  7. bluesurf

    bluesurf en dos ruedas

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    Yep, that's now today's plan. Thanks
  8. bluesurf

    bluesurf en dos ruedas

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    Oddometer:
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    Taxville
    Thanks for these details
  9. bluesurf

    bluesurf en dos ruedas

    Joined:
    Jun 18, 2004
    Oddometer:
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    Location:
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    I took a ride to run some errands and ensure that the bike was warmed up prior to reloading the previous map. At only one out of the dozen or so stops did the bike idle at ~1900RPM; the rest of the time was ~1400RPM.

    I'll review some of the obviously very helpful information regarding TPS issues, but right now am just going to leave things as they are.
  10. AJ990R

    AJ990R motorcycle guy

    Joined:
    Dec 13, 2011
    Oddometer:
    329
    Location:
    MKE,WI
    new with the tune ecu thing & taking a big trip this weekend...

    Shut the sensors off, is this ok? others doing it? even worth it?

    trying to make her run as smooth as possible...
    maybe even a little cooler
    I know twins are thirsty bitches!

    thanks guys
    AJ
  11. Loui€

    Loui€ Rides With Reindeer

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    Oddometer:
    92
    Location:
    PoroWaara, Finnmark
    O2 off? why? really, I see no advantage in that?
    my experience: with Akramap, O2 off takes 7-8 L /100kms, O2 on 5,4 L /100kms.
  12. AJ990R

    AJ990R motorcycle guy

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    Oddometer:
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    MKE,WI
    like i said before.
    smoother running at lower rpms(around the city)

    local superduke guys swears his runs better with them off.

    common practice on ducati twins.

    been running it with them off, it is smooth.
    Gonna start monitoring fuel mileage.:deal
  13. Dusty

    Dusty Long timer

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    That right there is why people turn them off. If its muddy or your plonkin around shit in 1st and 2nd it has much better throttle control. It even gets better without the secondary flies.
    edit;the second flies produce alot of engine braking also which i dont care for off road.
    Good on ya for givin it a go, make your own conclusions.
  14. Junglerot

    Junglerot /dev/null

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    Sorry if this has been answered, but Ive been searching and I can't seem to find an answer. I am unable to disable any of the "Devices" in TuneECU, including the SAI. Am I missing something? I have even downloaded other maps from the TuneECU site and haven't been able to uncheck the boxes :dunno

    edit: apparently I figured it out. I had to click it precisely 3 times to uncheck the box....
  15. Gustavo.Ramos

    Gustavo.Ramos Long timer

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    Had the same issue, not 3 clicks, but 1 to select the item, and double click to activate/deactivate! :rofl
  16. The Gobbler

    The Gobbler Been here awhile

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    Mar 25, 2009
    Oddometer:
    267
    Location:
    Conifer, CO
    Question for all you folks.

    I had to remove my O2 sensor (it burned a hole in my tank and don't want that to happen again). Now the question, I live and ride above 8000 feet, do I need to create a custom map for altitude?

    Thanks in advance.
  17. DirtJack

    DirtJack Adventurer

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    :huh Never heard of that before. Running with O2 sensors off (if that is what you're doing) does not mean that A/F ratio is not altitude sensitive. It means that loopback mode of ECU operation (when applicable) will not be possible.
  18. renogeorge

    renogeorge Let's ride!!

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    I'm no expert. A lot of guys seem to be running without O2 sensors as a performance modification in conjunction with mapping changes. I haven't tried it but most seem to say that it hurts mileage. The system has ambient air temp and MAP sensors--1 in each intake manifold and 1 in the atmosphere under the headlight. So I would guess that the ECU would be getting the info indicative of your altitude and temps. I don't know if not having the AFR/Lambda info from the O2 sensors eliminates the ECU making the adjustments. Try it and see, I guess.

    FWIW
  19. DirtJack

    DirtJack Adventurer

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    Loop back operation (with Kehin ECU's) occurs primarily in low throttle/cruise situations. Having O2 sensors on would tend to have a noticeable effect on mileage if there is a preponderance of that kind of throttle use during a ride. Less otherwise. :D

  20. 1coolbanana

    1coolbanana Long timer

    Joined:
    Aug 25, 2009
    Oddometer:
    2,667
    Location:
    NW Sydney, Australia
    Hey guys

    Ive got a 2012 990 R in Australia, I believe its the same ECU and mapping as EU version.
    My setup is:
    Stock air box,
    Akra slip ons
    Unifilter Pre Filter
    SAS removed
    Secondary flies removed
    Im using the Akra map, O2 on, EPC on, SAI off, 2nd Throttle off

    Would the Power Tripp map be compatible and worth a try or is it only suitable for US models?

    Cheers