Hi All, for past week my megane has had on off starting problems, it runs great once it going. i have changed plugs, tdc sensor, air filter, battery, i find it will on occasion start fine with no problems yet other times will only start with a jump start. i have found that the times it dont start my fuel pump isnt getting any power,(it not running,but when connected to a booster pack pump does run) so have ruled out pump been at fault, i have swopped around the relays under the bonnet. to no effect. i running out of idea's and patience. . if anyone can help that would be great. thanks in advance.