Hi cossack84,
yes on DDFI 3 system there is a step motor opening an extra air passage (IAC).
Up to now I am not sure why it is also moving around a lot, as it seem to be governed by engine temperature only.
Attachment 12117
Attachment 12118
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I am having an hard time trying to discover the logics behind ECM decision, as the few useful info’s are spreaded one by one all over the net.
I love my Buell, but it seems that Eric's guys left a lot of job to be done by costumers.
As I enjoy learning and put my hands 'developing' my bike I am not so unhappy with that, but I hate they (ISD?) did not supply us with
full info over their DDFI systems.
Really I don't think they are so good to worth keeping them secret.
Looking for everybody opinions, up to the next.