VEHICLE BROKEN DOWN AND RAC RECOVERED, NO FAULT CODES, ENGINE CRANKS OK GOOD CRANKING SPEED AND GOOD FUEL PRESSURE (LIVE DATA) CRANK AND CAM SIGNAL OK, ENGINE WILL START IF A SQUIB OF EASY START IS USED BUT WILL NOT RUN ON ITS OWN FUEL. SOMETIMES FIRES ON FOR A SECOND THEN CUTS OUT,ON TESTING INJECTOR PULSE THERE IS EITHER NONE OR THERE IS FOR A SECOND AS IT FIRES UP THEN THE PULSE IS GONE. IVE USED CUSTOMERS OTHER IGN KEY BUT NO DIFFERENCE