Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 999 / 749 > In the "one spark club" - sorted!

[nelly]

You'd still need the ECU, regardless of if a PC was fitted. The PC should be considered an "add on" rather than a replacement for the ECU.
However, the PC would work with the stock ECU and you'd probably find any downloadable maps are written around the stock unit rather than the DP item.

[HW]

I had considered the PC route, even before this occurred. However, I thought it might replace the ECU, but I can see how there is a lot more going on in the ECU than just the fuelling.

I borrowed a coil from Steve (Stv749) last night to try and eliminate the ECU from the equation. I can't help feeling that a coil will be quicker to get and replace than the ECU (mine is the Asymetric Termi module), but with the Ducati ordering system there is no guarantee of that of course.

First signs are that it is not the coil at fault. Whereas it was starting on one cylinder before, it is now not starting at all with the known good coil in. We did try the "possibly faulty" coil in Steve's bike too and at first it spluttered and fired on one for a moment, then cleared and fired normally. Couldn't get it to misfire then. I shall get him to test ride it on my coil when I return it to him this evening.

Looks like I might be refitting the standard ECU and a PC3 after all then.

Nelly, about how long would you say it would take to replace an ECU? I seriously doubt Italia would have one in stock, let alone the right one for my exhaust, so if that is the problem I might try to get them to refit the original one if it doesn't take too long. Would I be unreasonable asking them to do that whilst they are testing the coil (if it's a long job)?

[HW]

Originally posted by RIIIKYL
can anyone else join the OSC ???? - had same one cylinder problem on 999R 03 sunday am - ruined an early morning blast to the coast !!! F****

Will let you know if its coil or ecu ! -

Would I be better off buying a power commander if its the ECU ? or do i still need to replace the ECU ? - I do have the standard 999R ecu that mates to the standard exhaust (termis fitted with race ecu) ?

any advice appreciated !

You have U2U

[nathanhu]

when my coils failed it took out the plugs as well

the plug might be a good starting place....

[nathanhu]

it might be cheaper as well

[HW]

Originally posted by nathanhu
when my coils failed it took out the plugs as well

the plug might be a good starting place....

Interesting ... might see if I can get a spare one today to try it.

[weeian]

Im the same right now guys, have had the Coil replaced and it done it again so the bikes in right now getting looked at, will let you know what it turns out to be.

/ian

[HW]

I've just been trying to figure it out with a spare coil from a mate. WIth the battery fully charged and this other coil on there, it flattens the battery so the LO indicator comes on the dash, in about 3 or 4 tries. Done that twice today, recharging battery inbetween. It does seem like there is a short somewhere, but it doesn't seem to be the coil.

[weeian]

all my problems started after i put my Termi's on, dunno if its a coincidence or what..... mines an 03 749s

/ian

[HW]

Originally posted by weeian
all my problems started after i put my Termi's on, dunno if its a coincidence or what..... mines an 03 749s

/ian

Also an 03 749S, and problems started after fitting Termi. But then, it was at 1 year service that I had the Termi fitted, so you could also say problems started after 1 year service. Just the age of it I think, or the termi ECU is not briliant. Not sure yet.