Join Date: Aug 2017
Location: Perth, W. Australia
something that may be of interest,
Have a friend who is a BMW car mechanic, they had an issue with cold starts on some high end systems, namely M3 models. Turned out to be a faulty sensor that 'remembers' last throttle/mixture setting when starting. Usually, last start was when warm. Factory refit was made eventually.
They worked out a temporary fix, that was to clear the memory of sensor.
1. do not touch throttle.
2. cycle key on then off 5 times, allow sweep of gauges etc. each time.
3. Then start with no throttle.
Now I know all systems are different, may not even work on a Ducati, but hey, it's worth a shot after all the attempts made up to now. Bike that starts easily when warm, has to be a mixture issue, needs richer mixture for cold starts, like the old choke system.
EDIT. further discussion with mechanic, was in fact a temp sensor, telling ECU that it was at default temp ie. 70 deg. no fault code as within normal range for warm start.
maybe a similar thing and testing/replacing temp sensor could be something worth looking at.
Worth a try.
Last edited by ronski; 09-16-2019 at 07:04 AM.