i have a 2002 sunfire car just died while sitting at red light. tried to restart but just turned over .. got car home and pulled spark coil removed plug teats and set down turned car over to check spark.. getting spark next removed valve cover to check timing chain found it had lots of slack so replaced chain guides and sprockets. replaced plugs and ignition module. checked injectors to make sure they are getting power witch they are and getting fuel into cylnder. car still not starting ... any ideas what to check next
