Hi, I've just bought a 2001 vectra on a "Y", it was lumpy on idle but seemed to be fine when accelerating. The other day my wife went out in it, only round the corner! When she came out of the shop it wouldn't start for her, so I went to see what was up. I got it to start but it had a major mis-fire, wouldn't rev over 2k then it cut out and won't start, sounds like it's got no compression, i.e. turns over very quickly, also every now and then it'll backfire through air inlet. The cars done 100k. Any help greatly appreciated. Thanks