Hi guys and girls, encountered a bit of a problem with my 51 plate 1.4 16v lupo yesterday, hope you can help! I was driving through town yesterday and stopped at traffic lights on a hill, as i pulled off my car started juddering a lot. I pulled over to check under the bonnet (not that i know what I'm doing ) and noticed there was a hose that had popped off. Im not very savvy with this kind of stuff but its at the back of the engine bay on the left, maybe connected to the air filter? Anyway, i reconnected the hose and it made no difference. I drove my car around today just to get a better idea at the problem; it doesn't seem to judder when I'm travelling at a constant speed but as soon as i put my foot down, its terrible. Whilst doing this my engine check light came on, the one with the lightning bolt through it, and when i finally parked up it started to judder in idle as well, which it didnt do before. Ive spoken to some old-timers at work (I'm an engineer) they think its either the; spark plugs, HT lead, coil pack, or dirty fuel. Can anyone shed some on this for me, please? Is it something minor? Many thanks! Joe