looking for idea's on why the idle and steady throttle setting would fluxuate buy 100 rpm so it idles at between 960 and 1000 rpm at idle up and down constantly never settles and at part throttle openings as well same thing , ive changed the intake seals no diff, checked exhaust for leaks no dice , one of the only things i can think now is it has been the ecm all the time from new ! any thorts appriciated  

The IAC could be playing up mate. I fitted a 51mm throttle body that I brought from the states and had Dan Vance work his magic on. Anyway after fitting it to my bike was up and down with the idle so I put the IAC from my old throttle body and it fixed the problem. The 07 bikes had problems with some IAC's. They can also get a carbon build up and you need to spray carb cleaner into the pin hole just before the throttle plate in the body. What year bike do you have ?

gday hogBag its a 09 tourer mate , thanks for the tip didnt even think of that ! the only thing is its done it from new , and when i said something to the stealers they told me "thats normal its a harley " at the time was like hmm ok then if you say so but after a few ppl herd it recently they were like shit mate how long has that been doing that sounds like a intake leak !! definatly not a intake leak lol

Had the same issue on the my partners bike, I replaced the IAC module with a new part and all is working fine now.

I suppose it's out of warranty now ? I bet the dealer would find the problem this time around because your paying the bill. The IAC can be checked with a SESPT, TTS ect but not sure how it's done with the fly by wire body. It would be in the service or electical diagnostic manual. The IAC, throttle blade setting and the TPS are all tied together so you need a laptop plugged in to check it from a cold motor untill the bike warms up watching the voltage reading for the IAC steps. The throttle blade stop screw came lose on some 07 models and could cause similar problems.

thanks guys , i have to bite the bullet and take it in to the shop , def not the stealers !!!! and get it looked at , just a tight ass i am like working on my own stuff but this is too far away lol

I would get a price on a new IAC first and if there cheap fit it to the throttle body. The IAC is the round nanger on top of the Throttle body closest to you when the air cleaner is removed. Two security screws holding it in place front and back. The rear screw is a bit tight to get to but I changed mine on the bike with no problems. Simple job that should take half hour with air cleaner removal. The early 07 down tourers you have to remove the throttle cables aswell but with your bike being cable less it should be a easy job.

Good luck

Aussiesport, Hogbag,

I do not have a DBW bike or service manual, but I would check the "trouble shooting section" of the relevant service manual and then if there is no joy, check the "electrical maintenance" side. You may find instructions on a voltage/current check to the sensor. This may confirm that the IAC is indeed faulty and will need replacing, but the problem may be something else, process of elimination.
It pays to have a good workshop service manual and you can purchase one on CD from USA ebay for a fraction of a hard-copy price.

Paul