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Originally Posted by Rostrumorhospit
Got the bike back tonight.
The mechanic had the bike on a Dyno run, just a short run to check fueling and as he suspected it was running massively lean, he reckons the power comander that was on the original spec was probably faulty and has been removed and the ECU isnt mapped for the engine mods.
The guy running the Dyno tried but couldn't get in to remap anything.
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As far as I can figure it, on a 59M (I was trying to avoid this, but seem to be going down this road despite myself, heh), you pull the map, decide what changes to make based on the dyno run, twiddle the values in a program like TunerPro - and then blow the updated map to an EPROM and fit that to the ECU, re-test.
The iteration is time-consuming (erase takes about 30 minutes, re-program another 10 or so depending on size - at least, that's it used to take in the 80's for a 32K EPROM, lol).
Modern ECUs are rather different, as they hold the map in volatile memory backed by flash; twiddle the settings on-the-fly while the motor is running and save the map when happy..
Quote:
Originally Posted by Rostrumorhospit
The ECU fitted to the bike has the following numbers:
IAW 59M.A2
IAW 59M.A2/HW010/0115_099
12V=052 02
61600.630
996R
DUCATI 007
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Yeh, I was afraid it'd be like that...
I just received an ECU from Italy. In a Ducati box, with a 96506100B sticker on the box/ECU dustcap (which, of course, is removed once the ECU is fitted).
It has exactly the same numbers on it, except that the "12V" line reads "12V 351 01". I fully expect the one already in the bike will look much the same, should I get motivated to go out and look....
I'm just ordering some cables; hopefully the map header will have some clues.
Quote:
Originally Posted by Rostrumorhospit
As I said previously, electronics are not something I am good with.
Can this ECU be modified/flashed/mapped, to suit or do I need a different ECU that can be modified/flashed/mapped.
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The original ECU is limited by modern standards; takes cables, software, an EPROM eraser (a strong UV light) and a programmer to change the map.
I have an older MoTeC M800 on my car. Love it. But cost me (used) about what I paid for my S4...
Even if you bought a cheaper ECU (lots to choose from), you'd have to build a cable and probably take significant effort to figure out how to drive stuff...
I think I'd talk to Moto Rapido about a re-mapping session, to make up for the PC that's no longer there. I don't know much about PCs, but I believe they don't/can't add more than 10% trim or so? Which I wouldn't have thought would have made that much difference. At least in my limited EFI tuning experience, you don't go from "massively lean" to "that's great" with a 10% trim, even though it'd certainly go a long way to letting you smooth out/address holes in the part-throttle map (which is where you spend 1000% of your time/the rest of your life, along with the warm-up cycle).
Perhaps, when the bike ran well (assuming it ever did), it had different injectors? I know that a 900SSie and a M900ie ECU won't swap - although otherwise very similar, the 900SS and the M900 apparently use different injectors - the map isn't correct when you swap ECUs. Smaller injectors deliver less fuel for the same pulse width/duty cycle.
Quote:
Originally Posted by Rostrumorhospit
The other thing the mechanic thought could be causing a problem was fuel pressure but he checked this and was ok, so at least that was something ruled out.
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Well, that's something ruled out, at least.