Hi everyone, got a problem with the sons Astra, can anybody help

[Graham Viret]

Can anybody help. My son has a Vauxhall Astra 2015 J Type 1.4cc pertol turbo car. Apparently it started to misfire, but he limped home and parked up. The car will now not fire up at all. Ignition comes on and the engine turns over on the starter but wont fire up.
I've checked the in car diagnosis with fault Injector circuit low on cylinders 1 to 4.
This means didely squat to me, I can manage most old school mechanics, but have no idea if this can be resolved simply.
Any help or advise would be appreciated.

 

[Graham Viret]

Car is now running again, turned out to be the coil pack and fuse. Both replaced, back to normal.