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Thread: Combine your eprom chip with a PC3 map, then remove your PC3!

  1. #31
    apriliaforum expert Gabro's Avatar
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    cyl 1 is the front
    Aprilia bikes ECU tuning and reflashes since 2004!
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  2. #32
    apriliaforum expert BrummyMax's Avatar
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    Quote Originally Posted by Gabro View Post
    Max, the binary i've sent you has the pots enabled only up to 4000rpm ;-)

    btw: have you tested it?
    Yes I have tested it. 120 miles so far! I would be out this morning, but we have a lodger coming to stay, so I am cleaning the refridgerator, cooker, bathroom, hoovering etc and it will rain at 1:00pm

    I still have not tuned the trimpots and throttle bodies for the new spark tables and your codebase. Got to go to Griff at Aprilia Performance for that. He has the gas tester ... Anyway it is running much better. There is a low rpm stumble occasionally, like its clearing its throat. Inspecting the spark tables, it looks like you took your low rpm ignition and merged it with the high rpm ignition from the binary I sent to you, which confirmed my gut feeling. You have the theoretical and practical experience, I only have the theory. I cannot see any advantage in having such an aggressive ignition low down in the rpm, just where you need it nice and smooth. That is the problem that some have with certain brands of chip. They are rough down the bottom.

    This bike is great. It does not feel as powerful as it really is, because the later heads with the 1060 and and the 57's make it smoother than a stock early bike. It wheelies off the power in third running 16-42 sprockets. I really want to try it with the 51's to see what happens in the mid-range. I dont really care about 9-10k rpm.

  3. #33
    apriliaforum expert BrummyMax's Avatar
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    Quote Originally Posted by zilog View Post
    I would like a copy of the spreadsheet if you have it sort of working. I am however still at the point where I try to avoid false oxygen due to not igniting at all for lots of cells.

    Are you sure about #1 in the XDIF-file being the rear? I have logging for both cylinders, and I can see a direct correspondence between more fuel and richer burning for the front cylinder..
    I think its fully working. I would appreciate you checking it out for me by putting some example data into the spreadsheet and checking some of the output cells. A second person is always useful with this stuff, after all, fuel is flammable!

    A few notes though:

    • It is only setup to work with a single lamda sensor. I am going to develop it to work with single cylinder mapping, just have not got there yet.
    • Because the Motty injection map is at a higher RPM resolution than the RSV eprom, I have smoothed out the Motty map when downsampling. It averages a cell with the previous and following cells. This smooths out the peaks. I thought this was the best approach.
    • I think the latest build of TunerProRT shows the fuel tables upside down compared to the version I used to use. I got into a bit of a pickle with tables the wrong way. If there are any problems, then make some noise and I will sort it.


    Let me know what you think.

    RSVeprom+MottyAFR.xls
    Last edited by BrummyMax; 05-14-2012 at 01:46 PM.

  4. #34
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    Is there any knowledge out there about adjusting the latency settings, voltage adjustment for opening latency etc when installing different injectors?

    I have gone from stock DENSOs to 630cc Siemens Deka, and the engine floods when cranking no matter how small values I put in the fuel tables.

  5. #35
    apriliaforum expert Gabro's Avatar
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    Quote Originally Posted by zilog View Post
    Is there any knowledge out there about adjusting the latency settings, voltage adjustment for opening latency etc when installing different injectors?
    yes, i have it for std Denso injectors, IIGen Siemens inj, and Marelli IWP189.

    the engine floods when cranking no matter how small values I put in the fuel tables
    you have to reduce the cranking injection time.

    PS who made your ignition timing??
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  6. #36
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    Hi,

    The ignition-map is a "play it safe"-version I have made myself just to be able to initially develop the bike. Repeated WOT-pulls and a data-logger have been my tools, if advancing a cell left no gain or negative gain, then I backed off some and left it there. The rest of the map is just playing it safe, focusing on driveability and smooth transition when gradually opening the thottle.

    Could you share some information on how I could get my ECU to work with the 630cc DEKAs?

    Quote Originally Posted by Gabro View Post
    yes, i have it for std Denso injectors, IIGen Siemens inj, and Marelli IWP189.



    you have to reduce the cranking injection time.

    PS who made your ignition timing??

  7. #37
    apriliaforum expert Gabro's Avatar
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    you will have to alter the 8byte curve at address $3D: that is the cranking injection time time (fuction of air temperature, bigger inj. time when cold)... reduce it by about 40%

    i can't help you on the voltage adjustment, we'll have to measure that DEKA's speed.

    send me your binary file via email... i'll try to make you some adjustments
    Aprilia bikes ECU tuning and reflashes since 2004!
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  8. #38
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    Thanks it's really kind of you. I will send it later tonight when I'm released from work. Could you send me your email-address in a PM as I'm not sure I have it?

    I have found this spec for the injectors, maybe the missing parameters are there? http://www.msextra.com/forums/viewto...p?f=94&t=36303

    /Daniel

    Quote Originally Posted by Gabro View Post
    you will have to alter the 8byte curve at address $3D: that is the cranking injection time time (fuction of air temperature, bigger inj. time when cold)... reduce it by about 40%

    i can't help you on the voltage adjustment, we'll have to measure that DEKA's speed.

    send me your binary file via email... i'll try to make you some adjustments

  9. #39
    apriliaforum expert Gabro's Avatar
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    i've sent you back your binary file, modded at my way. let me know about you test ride
    Aprilia bikes ECU tuning and reflashes since 2004!
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  10. #40
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    Quote Originally Posted by Gabro View Post
    i've sent you back your binary file, modded at my way. let me know about you test ride
    Thanks,

    I appreciate your help. I really hope this solves my problems.

  11. #41
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    Get A HOW TO VID CLIP SORTED for challenged morsals like myself lol. I hate foriegn stuff on my T and Have never liked PC's tbh However I have never fettled with one either.

    I just think a good Chip is better than a PC fooling the ecu.

    Tomato tomato when it comes to detailing and dialing in a specific curve for your specific bike I guess a PC would be better or easier.


    I confess to be totally nieve of pc's tho I have to say
    Me n' Mine:-

    2006 Caponord ETV 1000 "Twiki"
    2004 Tuono Racing Rep, Full Carbon with SBK 2-2 Akro's
    2002 ZX636 A1P Ninja list of mods is endless
    "Made in Italy....Perfected in my Garage"
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  12. #42
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    HELP After months of No battery in my T it seems my PC3 "early Seriel Port model" has lost its mapping or something.

    I placed the battery in the bike and placed the earth wire for the pc3 on the battery
    the damn thing has the injectors firing all over the place. making it hard to start wont keep running and lots of back firing.

    I remove the PC3 injector connections and revert to "OEM" setup and the bike runs fine.. (well, fine for stock lol)

    So does anyone have a seriel port cable the disc for the laptop and some basic advice to getting the POS PC3 re mapped or setup to work again.

    OR

    Gabro you will see some beer chits for an F255 Eprom soon fella lol
    Me n' Mine:-

    2006 Caponord ETV 1000 "Twiki"
    2004 Tuono Racing Rep, Full Carbon with SBK 2-2 Akro's
    2002 ZX636 A1P Ninja list of mods is endless
    "Made in Italy....Perfected in my Garage"
    I've never questioned why I ride, it's as basic as breathing.

  13. #43
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    So always put the trimpots on 12 oclock before the PC3 custom mapping on the dyno?

    Cause my bike was done last year, co2 adjustment and trimpots with the AE40 FV4 chip from gabro. (are the trimpots active on all rpms Gabro???)

    57mm siemens
    2-2
    open airbox

    But its not perfect yet, and i can borrow a pc3. So this would be a good option.


    Greetings

  14. #44
    apriliaforum expert Gabro's Avatar
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    no, in that chip the trim pots are active only up to 4000rpm
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  15. #45
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    Allright thanks. Will keep that in mind! And then put trimpots on 12 o clock before pc3 tune? Or leave em like they where, when they where setup on the co2 adjustment?

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