High Idle problem

[Goodwinsplace]

My Girly is idling around 2 - 2.5, both cool and warm. Rides fine but when trying to slow down through the gears or cornering it's a bit uncontrollable.

I've read lots of posts on here and other forums and websites and tried the following:

• Stripped down and checked the air hoses, I could only visually check them as I did this in my street and didn't have a way of connecting the tank at the same time. Hoses looked like new and went over them quite detailed to check for any cracks or breaks.
• Remap, I've remapped using the Triumph TOR map (I have the TOR exhaust) and this sorted it for two days, riding lovely, but after a few days it went back to the issue.
• 12 minute tune, given it the 12 minute tune as a last resort

Is the next thing a faulty IACV? If so what's a good price to pay, I've seen them second hand on eBay for around £50.
Any other tests I can do on TuneECU or other things to check?

[John Stenhouse]

I think you can cycle the ACV thingy on tune ecu, thats hould tell you if it;s working

[Bixxer Bob]

You can. And you can check the fan is working, the rev counter, and one other that I can't remember....