Why are injector getting fire but not spraying

the computer supplies the ground when the injector needs to fire, does it have a security light on, this could cut the ground off to the injector. or it could be the computer itself

Check the fuses, marked meter in fuse box. There are two led lights in a small window w a code breakdown if this is a vg30 w a distributor the cas or crank angle sensor is inside and sends signal to fuel pump, spark, and .......... Injectors via ecm

Spark don't mean its working