Can any1 help?

im getting problems when i start my car, some time it dont seem 2 start. The starter motor is fine, the battery is perfect. i thought it was my damaged HT lead but when i changed it there was no difference! this problem only happens a Few time no much, but if Fu*ks me off! Some times happens just after i turn the car off and it will not start backup 4 about 10mins! My Mate sed it cud be the fuel filter? When the car starts after 10mins it will hold back and keep jerking back and forward for a few mins! can any1 help??? [img]/ubbthreads/images/graemlins/confused.gif[/img]