I have an small issue that's been bugging me for ages and I can't figure it out.
Every so often on my 1.9jtdm 159SW my idle is high, between about 900 and 1200rpm, but, it's doing it whilst driving. If I'm cruising along at pretty much any speed and drop the clutch it will float around the higher rpms. (Like in old cars if you pulled the choke out). I can also feel that it is down on power when it's doing this and a bit lumpy if I give it the beans.
Blanked and fixitstan'd the EGR
Removed and fully cleaned all of the injectors
Run loads of injector cleaner through for the past couple of months
Serviced every 6 months at the most with decent oil
New turbo about 4 months ago
Any ideas would be appreciated as I am stumped.