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Hello everyone, please excuse long introduction to my problem but I have researched the intrnets over and threaded posts over and to no avail can come up with a solution.
While riding on a beautiful day I was making turn can and seen A buddy and revved off the motor and the engine shut off. I shifted down and tried to bumpstart but nothing happen. I coasted home and park the bike and try to restart but it would not. A few hours later I went to show a buddy how bike wouldn't start. I turned it over and startedfine. The next morning I went outside started up warmed up to 170 no problem. went on my way. About two miles later I came to a stop, started off again going into second gear the bike shut down again like before. would not restart after hours of sitting. I I had the bike towed back home to begin my research. All the Electrical functions from lights to starter work . No blown fuses, no bad relays, fuel pump turns on, starter turns over, fully charged battery, No obvious wire damage, killswitch ok, ignition checked ok, kickstand sensor checked ok and still no spark at either spark plug while turning over motor. There is a spark when the key is turned off before the second relay engages during fuel pump priming.If you close the relay contacts manualy the plugs will spark .So we went through the workshop manual and unfortunately could not get to the pages for the diagnostics schematics to check factory resistance and voltages for each plug or sensor. there is a diagnostic plug but can not find any tool to buy to plug into it. :violin:So I took to to a Ducati mechanic advertised in Craigslist but he could not diagnos my 93Ducati because he only worked on 2000 and up. So I put in the local shop that for diagnosis. After 4 weeks they could not come up with One. They did however say that there was no voltage registering on either pick up. Then I picked up the bike and took to the European motor parts specialist and he removed the EEPROM chip and switched with + 888 chip to see if ECM was damaged. When turning on the key fuelpump engaged and the plugs started firing as if the motor was turning. :BoomSmilie_anim:After the relays cycled, the firing stopped. He Pushed the start button and Engine turned over but still no spark. Put the original chip back in and the guy suggested it was in the ignition switch. So I unplug connection and hot wired still no spark . I have removed and replaced all grounds after cleaning contact points I have unplugged and replugged all connections from the switch to the tail lights looking for corrosion still No spark except for when the key is turned off. One spark. Going back to what the shop told me about the pickups not showing voltage is where I m stuck. In the morning I will turn the wheel while in gear and the key on and in run position and look for spark. Any suggestion?i am trying to use logic and it is making me dizzy:ahhh:. Is there a 123 guide to follow somewhere?
 

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I know you looked at the side stand switch but have you actually bypassed it to make absolutely sure? A problem with the switch will likely cause some random behavior.

Another thing you can check is to make sure the starter wire is not damaged. The wire can get wedged between the heat shield and front cylinder.

I listed these two issues because both happened to my 1198. Sorry I don't have anything else you haven't already mentioned
 

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Discussion Starter #3
Thank you for responding. I went ahead and recheck the side stand sensor and it was fine. I double checked the connection to the starter and all seemed OK. But I did find this week was the small hole in the ICM . Both of them. It looks like it has overheated and blue the small melted cone at the top of both modules. I was able to trace backwards from there and found that the coil pickups sensors 1 register with continuity and ohms and the other did not register anything at all. I've been check from their connections back to the ECU and when touching the ground it kicked on the fuel pump. So seems to me that the ECU is functioning correctly now I'm in the hunt for two BKL3B. Send a few cross-referenced aftermarket module it seems like this particular module just under a few different names like for Fiat Lamborghini Ford Jaguar Exedra. I just can't find any cheap ignition pick up coil sensors yet. I will try to post a picture of the modules if I have any luck. Wondering if the whole electrical system fried some way because now even with the sensors removed from the bike it still will spark while I turn off the key.
 

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good work man. i certainly can't shed any more light on your issue but it sounds like you are on the right track. thanks for posting your findings, it helps others.
 
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