Bike is a 2006 S2R 800, w/ DP ecu, Sil moto cans, cat delete, and Pod filters
About a week and a half ago I pit the TPO pod filter kit on my bike, I liked the kit, nice quality, but the bike was running too lean.  Rather than get it re-tuned @ the dealer (they suck) I just put the airbox back on, for now (i'm planning an extensive re-build over winter)  When I got it all back together, only one cylinder was firing, the vertical.  I checked all the connections, plug to coil, coil to wiring, etc, nothing wrong there.  I swapped the plugs and had no change, forward (horizontal) cyl. not firing.
I figured I had screwed something up with the coil (its mounted on the airbox) I then checked to see if i was getting spark with my tester, thats working, getting spark @ the plug, okaaay...
Maybe its not getting fuel, I think, i shoot some starting fluid into the fwd cyl, put plug back in, start it up, and the bike runs good for 2-3 seconds, ok, its not getting fuel
Checked the injector wiring connector, looks fine, its plugged in tight.
Maybe the injector is bad?  I swapped injectors between cylinders, the same time noticing a little fuel coming out when i unbolt the top (so fuel is getting to the injector)  and no change,  so the injector is good...
And that is where i am now.  It seems like the injector is not being told to fire.
I don't think i could have done anything in the intake swap to screw up the wiring...I guess next i should test the injector connection with a multi-meter to see if its getting power?  Am i over looking something obvious and basic?
I also went back to the pods and still have the same problem.  Any help is appreciated!

Check that the brass connector in that injector plug isn't pushing back into the housing.

You could try disconnecting/reconnecting the ECU plugs.

Try swapping the injector plugs to the other injectors.

Did you check to see that you got the fuel lines plugged back properly into the tank, not switched?
I don't think it'll run that way, but just a longshot...

Poked around with a test light and found the forward cylinder is indeed nat getting power.  DAMN! I hate electrical problems!!!  tomorrow i'll try to track down the break/short/whatever and fix this freakin thing...I'm guessing now that i maybe crushed a wire or something during re-assembly...ugh

Shit.

No crushed wire, ran a continuity test from the injector plug to the engine ECU plug, it's ok.  Looks like the ECU shot craps.  Its not giving power to the injector at all.  Anybody know why it would choose now to screw up? Its the DP unit with about 7500 miles.  ugh, looks like i'll be pricing them now...

Sure is lonely in here by myself...
Anybody know of a good place to get just the DP ECU?  I've checked w/ a couple of the Sponsors but it seems like places just sell (or list) the Exhaust/ECU kit...
Is it just a plug and run when replacing the ECU? (I doubt it) I have the Red key if that helps.
Any help is appreciated!!

Not sure what to tell you.  If the plug is firing, and one side of the injector has +12V, the other side has continuity to the ECU, then like you said, the ECU isn't telling it to fire.

I've seen ECU's that have had the injector drivers burn out before (on cars), because someone installed a low impediance injector without a resistor box where a high impediance injector (or one with resi box) should have been used.

Not sure how the injector driver could get damaged unless it was shorted out to ground and you tried to crank it = burning it out.

I've got an inside line on a guy in europe that can reprogram the factory ECU, as well as re-set the immobilizer, and a host of other tricks (RPM limit, etc..).  If you find a "keyed" ecu, he can fix it for $400 (and tune it at the same time).  Granted, it wouldn't be a perfect tuned on your bike/dyno tune, but it will be darn close using other bikes local to him as a test bed.

LMK if I can help.

I don't see how it could have shorted to ground, the closest i did was crank it with one of the injectors disconnected (or both, i was trying everything i could think of to diagnose)

"keyed" ECU, meaning one that has already been set to a bike/set of keys?  i have seen one on ebay, but it was the stock ECU. 

I think if it came to that, I would just get a DP ECU and have my dealer program it (groan)

Is it possible to just hook up and ECU and go? Then i could at least get to the dealer and have them program/tune it, other than hauling the bike.

You can install the DP ecu, but you will need someone with a Ducati scan tool or VDSTE software plus an exhaust gas analyzer to set TPS and CO trim.

Shit, thats what i figured...

Guess i'll have to tow the thing to my dealer and have them put one in...shit!

And thanks guys!

Right, so this is an old post but the problem is fixed!!! i dropped my bike off at a local shop I have never tried before but who advertises as servicing Ducati, (certified dealer is 50 min. away and jerks to deal with)  Shop is Motorrad of St. Louis.  They used to be a BMW dealer but now just do service on mostly European bikes.  Anyway, turns out it was a bad ground for the fwd. cylinder injector.  They said the main common ground had all other wires going in nice and in one direction but the one for the injector was ratty and shoved in the other way, they said the wrap around the wire looked factory, which doesn't surprise me. 

ah well, got my bike back!!! just in time for cold shitty weather!!

Anybody looking for service in St. Louis MO, and not wanting to deal with Donnelson, i recommend Motorrad.  They had a bunch of Ducs sitting around and were actually finishing a custom Monster right before my bike.

   

Where is Motorrad located?  I stop at Donnelsons most times I'm in Stl. just because they have a pretty good selection of bikes and quite a few accessories to oogle at, but the last time I was in there I didn't ONCE have anyone (there had to have been 10+ folks on duty) ask me if I needed anything.  I'd like to check out Motorrad next time I'm in town. 

Oh, and glad you got your ride fixed.  Did you have to get a new ecu or did they just repair the ground issue? 

And for the record the "shitty cold" weather here in Mid Mo. was 45 and sunny.  Throw on a couple o' layers and hit it you candy ass 

Quote from: DucatiBastard on September 28, 2008, 03:01:50 PM
Shit.

No crushed wire, ran a continuity test from the injector plug to the engine ECU plug, it's ok.  Looks like the ECU shot craps.  Its not giving power to the injector at all.  Anybody know why it would choose now to screw up? Its the DP unit with about 7500 miles.  ugh, looks like i'll be pricing them now...

It's programmed into the ECU to teach you a lesson for fitting non Ducati parts 

Address for Motorrad is 5731 Dale Ave. St.L MO 63110

Its close to Manchester and Hampton, sorta the north end of The Hill.  Its buried in the mostly residential neighborhood behind CeeKay Welding.  They run an ad in the RFT as a Hyosung dealer.  The thing is they are just service otherwise, frankly if the bike was still under warranty i would probably still go to Donnelson, its just last time i was there for the 6k service they said it'd be three days, i called three days later and they said they hadn't started on it yet, but would call me.  Two weeks later i get a call saying my bike is ready.  I understand delays, just call and let me know about it!  Any way, Motorrad has no "show room" just a front office and the shop.  They had quite a few Ducs sitting in the shop when i was there. 

And they also fixed the wiring, didn't replace the ECU (thankfully) 

Yeah, i need to get some better winter riding gear for my candy ass , which is for me the only great thing about Donnelson, they have a huge store/bike selection.  Have you looked through his vintage collection? really nice stuff.

and Capo, the only non Ducati parts are the pipes, and mirrors, turn signals, sounds like the ECU is smarter than me!