hi have recently bought a 2005 2.3 ghia galaxy ive only been driving it a few weeks,it cut out a couple of times on a long trip down the coast,all i done was switch the engine off wait a few mins and away it went,a few days ago it broke down when the wife was driving and all the kids in the car,totally dead apart from ignition lights they all lit up but nothing,called the rac who came out and took a puzzled look at our car,after a few attempts at starting it whilst i was away getting the spare key,it sparked into life,where he said you have some form of engine management relay problem,so he said he would follow me to a local garage where its been for a couple of days where it has started and driven ok,????on my way to the garage the car wasnt driving as nicely as it normally does and sounded like the engine was pinking when i revved it quite hard up through the gears etc any suggestions would be great as we need our car back many thanks.