Lumpy idle? Potential 10 minute job!!
Idle control valve at right side of the engine (as you stand looking at it) sticking out of the big silver lump running fore and aft on top of the engine which says 'ecotech' or similar.
remove the electrical connector to the rear - lift the wire and pull plug backwards.
Screwdriver to remove the hoseclip and pull off the hose to the front.
Slip out the silver gubbins from the black rubber holster and the black rubber into the aforesaid silver ecotech thing...
Use copious amounts of carb cleaner down both open ends of the thing you are holding to flush out the crud.
Use a few drops of 3 in one or sewing machine oil into the hole on the side then reassemble, as the Haynes book of lies says, in the reverse order.
Steady idle should be restored.
or not.....
It genuinely is a 10 minute job, no b*ll sh*tt*ng!!
Pull the plus leads to see if there is any oil in the plugwells.
If there is, then continue the earch for someone to work on the car if you do not have the time. Rocker cover gaskets require renewal - more than 10 minutes!!
HtH
B