Standard ECU

[xjrjohn]

Hi
Sorry if this sounds a thick question but here goes anyway.
Can the information on a standard ECU be altered in any way via computer software...ie fuel/air levels etc. (kind of like a EPROM being flashed). If so is there any way it can be reset....e.g. disconnecting the battery?
The reason I ask is because the guy who serviced my bike (no names mentioned) said that he'd altered the fuel trims to +7 (why +7 I dont know , is there a figure it should be set at ?), and now under 3k it doesnt feel to run as smooth.
I know I can go down the power commander route but obviously if I ever disconnect it (to sell for instance) it'll be as before I fitted the PC
Ta in advance
John

[CK & AK]

the std ecu has been remapped as not difficult to do by anyone who has the software..
Muttley & DRC have had theirs done (use lots more fuel tho!) tho not quite to +7.

You have now had it richened up over the whole range - I take it you have an open airbox & open pipes?
It will drag at lower RPM as it is now running rich.
You might find if you change the front sprocket to a 14 (if you havent already) as this will make it buzz up more quickly & you'd lose some of the fluffiness.
A Power Commander would be more programmable in the mid range - or an FIM chip
I think the battery would have to be disconnected for a long time to lose its memory tho.

Alan

[xjrjohn]

the std ecu has been remapped as not difficult to do by anyone who has the software..
Muttley & DRC have had theirs done (use lots more fuel tho!) tho not quite to +7.

You have now had it richened up over the whole range - I take it you have an open airbox & open pipes?
It will drag at lower RPM as it is now running rich.
You might find if you change the front sprocket to a 14 (if you havent already) as this will make it buzz up more quickly & you'd lose some of the fluffiness.
A Power Commander would be more programmable in the mid range - or an FIM chip
I think the battery would have to be disconnected for a long time to lose its memory tho.

Alan
HI
Ta for the reply
No ive just got aftermarket road legal pipes.Someone said a reset can be done using the red key..is this correct or something totally different?
John

[bod]

Sorry to hijack slightly,have just fitted DP air filter to match the Termis on my 620.

It has intermitantly popped back through exhaust and air filter since bought new,I never took it back to dealer as it only did it every 50 miles for a few seconds and suspected they would never fault it.

Was quoted about £45 by dealer but they are quite a distance away(has took me two months to find time to go over and buy servive kit):mand:

I have been given the name of a local guy who sets up a friends R6 he races on his rolling road....Questions then

1- Can he make any adjustments to standard ecu(have heard of a small screw in side of ECU to adjust CO% reading).

2- Can adjustments be made on throttle bodies.

3- Do I take it to dealer and use there Mathius tester?(I have access to CO% machine at work, so do I even need a rolling road(not too bothered about BHP figure readings,just that it runs better and wont burn out a piston over time if it is running too lean.

Im pretty spanner handy but don't have enough knowledge of FI on bikes.

Idea's?

[Sparky]

1- Can he make any adjustments to standard ecu(have heard of a small screw in side of ECU to adjust CO% reading).

I think this depends on the age/type of the ECU but my 2004 M1000 ECU requires the use of either the Ducati Methesis tool or software and cables from company such as Technoresearch to adjust the fuel trimmer.

2- Can adjustments be made on throttle bodies.

You can make minor adjustments to the idle mixture by adjusting the air bleed screws on the throttle bodies.

3- Do I take it to dealer and use there Mathius tester?(I have access to CO% machine at work, so do I even need a rolling road(not too bothered about BHP figure readings,just that it runs better and wont burn out a piston over time if it is running too lean.

I think a CO machine will only help in setting the idle mixture. You really need to measure air/fuel ratio at various throttle and load conditions to setup the fueling properly. The ECU trimmer will only adjust the fueling over the entire range so increasing the fuel by 10% at full throttle will also increase the fuel at all other throttle positions. Looks like your local guy will at least be able to tell you if changes need to be made to the fueling.

Chris

[bod]

Thanks for the reply Chris...Food for thought

[Zimbo]

The trim screw gives a limited adjustment over the entire range, and is unlikely to improve fueling much overall - chances are it'll introduce fueling problems elsewhere.
Fitting a power commander will sort the fueling out accurately, but back to the original question:
Yes, the ECU can be remapped, and there are a few in the UK able to do it for you. Try Sigma Performance as a starting point, they should be able to help

http://www.sigmaperformance.com/

[CK & AK]

Std ECU can be remapped by any Ducati technician who has the software Zimbo, such as JHP, Moto Rapido, Pro-Twins etc - as said before, in the 2nd post mate:) 'the std ecu has been remapped as not difficult to do by anyone who has the software'

You'd only need Sigma for the FIM chip, or for more specialised work to the bike.

[Black Ferret]

[QUOTE=
I think the battery would have to be disconnected for a long time to lose its memory tho.

Alan[/QUOTE]

So you are saying that if for instance, that if I went away for six weeks and left my bike in the care of my bother-in-law. And he let the battery run completely and utterly flat. That I may have lost the the mapping programmed in my power commander ecu? There's no on-board power supply? And that this may account for the fact that the bike just doesn't seem to perform quite as well as I seem to remember it doing before I went away?

[CK & AK]

cant confirm that mate, I would have thought much longer.
Tho worth checking with your local dealer?

:)

[Sparky]

he'd altered the fuel trims to +7 (why +7 I dont know

xjrjohn... there is no single correct value for the fuel trimmer and is there simply to allow for bike to bike variations. Saying that it has been adjusted to +7 is meaningless if you don't no what it was beforehand.

My bike, for example, was initially set to -3 but putting new cans on made it pop and bang a little on the overrun and generally not feel good at low revs, the plug colour also suggested that it was running lean. I had the bike dyno'd and sure enough it was running lean. I'm still in the process of getting mine right but at the moment I'm running with the fuel trimmer set to +1 and it's made the bike feel much better at low revs and the popping on overrun has totally disapeared. So I have added +4 to my trimmer so the question is does your guy say he has added +7 to the trimmer or set it to +7?

CK & AK and Zimbo... As far as I know dealers/technicians cannot remap the Marelli 5.9M ECU, the one currently in use, all that can be done is adjust the fuel trimmer. All this does is add an offset to the map that is already in there, this is not the same as remapping.

Chris

[xjrjohn]

xjrjohn... there is no single correct value for the fuel trimmer and is there simply to allow for bike to bike variations. Saying that it has been adjusted to +7 is meaningless if you don't no what it was beforehand.

My bike, for example, was initially set to -3 but putting new cans on made it pop and bang a little on the overrun and generally not feel good at low revs, the plug colour also suggested that it was running lean. I had the bike dyno'd and sure enough it was running lean. I'm still in the process of getting mine right but at the moment I'm running with the fuel trimmer set to +1 and it's made the bike feel much better at low revs and the popping on overrun has totally disapeared. So I have added +4 to my trimmer so the question is does your guy say he has added +7 to the trimmer or set it to +7?

CK & AK and Zimbo... As far as I know dealers/technicians cannot remap the Marelli 5.9M ECU, the one currently in use, all that can be done is adjust the fuel trimmer. All this does is add an offset to the map that is already in there, this is not the same as remapping.

Chris
He set it to +7 but made no record of what it was previously, and yes I know its meaningless thats exactly what I thought when he told me about the adjustment.
John

[Black Ferret]

cant confirm that mate, I would have thought much longer.
Tho worth checking with your local dealer?

:)

Ho-Hum. I don't even know for sure how the maps are stored. EPROM I'd guess at. Maps are going to have to be checked when I have new exhaust fitted at 6000 mile service very soon.

cheers