OK, let me try and explain this. When ever i drive my car before it has fully warmed up it drives like a dream.
As soon as it seems to warm up it begins to over rev, for example if I'm at the lights you can slowly hear the idle creep up, so when you go to put it into first it will kinda clunk into it. And when it comes to just driving around the burbs, the car kinda drives it self - just because since it is kinda constantly over revving it will accelerate the car when ever I'm in gear (if that makes sense?)
Also, if I put it in neutral and push down the accelerator, it wont drop back down to normal revs, it will kinda stay at how high you revved it and SLOWLY make its way back down.
Anyone got any ideas?