| All of the ECU's Ducati have used since the P8's store the error codes. Both historical and current problems are held in memory.
Some ECU's are able to offer more info than others, with the latest types offering up the most.
The mathesis tester can't, on it's own, set the mixture though. When setting the fuelling up it's used for setting the default TPS position, and on the 1.5M ecu's (SSie's) and 5.9M's (ST4S, S4, 749/999) for trimming the fuelling but after that you'll need a CO analyser piped into the exhaust headers to set the mixture. | 
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