HRC_V4 Posted April 22, 2023 Share Posted April 22, 2023 Any know of a person or company that will rebuild Weber Marelli ECU/ECM? Not necessarily for a Guzzi or motorcycle. Having issues with an ignition ecu, having trouble finding anyone to look at it. Link to comment Share on other sites More sharing options...
docc Posted April 22, 2023 Share Posted April 22, 2023 Which ECU version? (For example, our V11 are 15M or 15RC) Link to comment Share on other sites More sharing options...
audiomick Posted April 22, 2023 Share Posted April 22, 2023 And what do you mean by "rebuild"`? Replace electrical components, or restore the "programming"? 1 Link to comment Share on other sites More sharing options...
HRC_V4 Posted April 22, 2023 Author Share Posted April 22, 2023 Not sure Doc, it is an IAW, I look and figure it out. I think there are some internal issues with it, so replacement of parts, it randomly turns off momentarily, traced every wire back to ecu, cam and crank sensors are new, grounds and power are good, when fans turn on the miss gets worse, but voltage is 13.8 at idle and drops 13.5 when fans come on. Starting is an issue, if the tach does not jump when cranking, it won't start. Tested it with timing light, light stops when engine misses, test both coils and they pass. I have a used ecu coming to make test to make sure. Link to comment Share on other sites More sharing options...
audiomick Posted April 22, 2023 Share Posted April 22, 2023 2 minutes ago, HRC_V4 said: I have a used ecu coming to make test to make sure. Perfect! Link to comment Share on other sites More sharing options...
HRC_V4 Posted April 22, 2023 Author Share Posted April 22, 2023 Doc, I believe it is a 4c, but not sure, I'll keep researching. 1 Link to comment Share on other sites More sharing options...
docc Posted April 22, 2023 Share Posted April 22, 2023 Just for clarification: Not a Moto Guzzi V11? Link to comment Share on other sites More sharing options...
HRC_V4 Posted April 22, 2023 Author Share Posted April 22, 2023 6 hours ago, docc said: Just for clarification: Not a Moto Guzzi V11? Yes, if you need to move this to the proper place, please do, just having issues finding someone to work on any Weber Marelli system. 1 Link to comment Share on other sites More sharing options...
al_roethlisberger Posted April 22, 2023 Share Posted April 22, 2023 I don't know if Module Masters rebuilds that part, but I have had them rebuild a couple different electronic modules from my Jaguar over the years and they have had good results. You might reach out to them. 1 1 Link to comment Share on other sites More sharing options...
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