my vectra deisel has started to puff out black smoke ,quite a lot at times .can clear it by accelerating but this sometimes causes engine management light to come on and this in turn sometimes puts car in nursery mode. by stopping and removing key and restarting i can reset everthing and start the whole process again by coincidence this also starts traffic master. fuel consumtion is still pretty good and car when not smoking still does motorway speeds ok had erg valve cleaned but no difference

m hoskins, June 2007

first disconect the battery for 48 hrs this can some times work with competer fuel systems then change all filters- air -fuel-oil , change the oil also, after this im afraid its down to havin it PLUGED in at a garage this will cost though. good luk

lee, June 2007