Guys thanks for the tips i will start again with what i have done and what i have found. currently engine has no spark or injector pulse. CAS has been tried on a different car and worked. i have also checked voltage to CAS which is 12 v. i'am also getting no resistance to earth which means the CAS is getting a good earth. i checked both the 1 and 180 degree signals at the ecu with a multimeter and getting a pulse there. the injectors have 12 volts and the wiring back to the ecu is fine. injector pulse is checked with a noid light. i have check for power and earth at the coils and ignitor module which are fine. except im not getting a signal out of the ecu to fire the plugs. i have checked resistance values of the coils which are in speck. i have have checked the whole loom out of the car for broken wires etc. done a complete continuity check on the loom which was ok. checked every connector for proper connection which was ok. have checked all ecu power and earth circuits which are ok. i have tryed different ecus. i have manualy powerd and earthed each injector (with ecu dissconected) and each injector fires. CAS is in correct posistion and pin is in shaft and D locator is intact. i know it has to be something simple stoping this thing from going but i cant just seem to find it.