Hopefully my question goes through now. I have a Renault laguna V6 ( 2003 model ). When I press the start button the engine turns but it won't start, I only use to do that intermitantly ( especially in the morning) but now it won't start at all even thou the engine turns. There is fuel pressure but no spark (ignition) at the spark plugs.Renault did a diagnostics test on the car , the computer picked it up but wouldn't read it or diagnose it. I suspect it to be a faulty pick-up cencor or the ignition box ( computer) situated underneath the battery.