Hi, I own a 52 plate Impreza wrx, totally standard, 75k miles.
The problem is when I change gear and cut off the throttle and depress the clutch the revs increase by 200 to 500 revs before dropping, I have heard it could be a sticking ( idle control valve ) or the ( neutral position sensor ), has anybody else experienced this and if so how did you cure it, this is really annoying and I would love to stop it.
Any explanations to why it does this and advice on fixing it will be much appreciated.
Thanks in advance, a fed up wrx drive.