I need urgent help

Hi, as a comment, have you checked if the fuel pump is getting power? Also, check the ground wire, which is located in the middle of the chassis. Without that ground, the pump won't start. Also, check that it has 70 psi of pressure; if it doesn't, it won't start either. Hope this helps. Good luck...

The pump works. It's new. It reads 65 pounds.

Have you checked if the injector is working? It might have power but still not function. Another thing you can do is jump-start it with a fuel pump and apply 72 psi of pressure. That might dislodge the injector if it's stuck. Good luck... If not, let me know what else you need to check because if you have spark and fuel, it should start.

I'm going to try the float tester like you said, I hope that's it... just a comment... it's not just one injector, it has six. But I'll do it and let you know. Thanks for your time

Ideally, you should narrow down the search area. Check for a lack of current, fuel, or compression. Martinez is right; if there's a pulse but it's not injecting, the injectors might be cut off. But check for spark at the spark plugs and everything else.