x12xe juddering

[nova_pipi]

hi all, iv just come home from uni on the motorway and as i was driving the car suddenly started juddering as if the power was dissapearing then coming back, it did this quite alot of the time then after this had happened and i put it into neutral in traffic the revs were sat at 1500 until i briefly revved it then it would drop back to normal, does anyone have any ideas on what this could be?
thanks
phil

[Spudly]

Id be thinking icv if they have them, is this your corsa?

[nova_pipi]

ye its jus started doing it now, wots an icv?

[nova_pipi]

is it an idle control valve?

[GeorgePayne92]

yes most likely

[nova_pipi]

i was thinkin that on the way home, iv got a spare one so ill get it chenged 2moro, will it need clearing off the ecu?

[AlexW]

Since you cant flash codes on these engines its a pain in the tit. If you have a spare ICV try it, Bare in mind that the 1.0/1.2 run a funny type though.

Just plug it in and take it for a drive. If it still the same, Unplug the AFM and try again.

[nova_pipi]

thanks everyone, i sorted it out today it was the idle control valve, only took 5 minutes to do, thanks again