Racey tick over!!
I recently had a fluctuating idle. Garage repaired a split in an air hose and cleaned (as best they could) the idle valve.
Erratic idle cured but then stuck at approx 1500rpm and slowly decreased. Foot on the accelerator again and back to 1500rpm when I took my foot off
Cured itself after about 3 days.
Back again - exactly the same (after about 3 weeks of running perfectly). Its been about 3 days again - hoping for a self cure but not convinced.
Anyone got any ideas on this at all?