Woah hold up, mine is FIXXED!!!
Oh yeah baby, no new parts either!
Not sure if it was one of the following, I still suspected the MAF (mass air flow) sensor, but basically hit 60k on Sat so gave it new oil and air filter today, and also took off the MAF sensor and gave it a damn good clean, first with WD40, the some compressed air to dry it thoroughly, plonked it back in again, car works purrfect! Was actually
trying to make it bounce/jerk in the middle of the 'bad' revs and it point blank refused to do it! RESULT!
The MAF sensor is hot wire type, basically it's reference for the density of the air, which it can gauge from the temp as the air flows over it. Lower temps means higher density which means more oxygen, so more fuel has to be put in to keep ratios correct. What I was thinking was that the build up of oily crap on it made it give some funny readings, especially at low airflows...
It's torx bolted onto the right hand side of the tb, underneath the filter box as you look at the engine, and is just a little slightly oblong box with a 4 pin connector in the top of it. Inside is a tube with a thermister in it. Thats it! Mine looked ok but cleaned it anyway, and gently re-centred it in the tube.
I must add that I've had the throttle position sensor
cleaned about two weeks ago, so it may be wise to do this/have it done too. If it's just the air filter as philipreji does with his Uno, then do this first, as mine now has a new air filter on and it's behaving...
If anyone wants more info don't hesitate.