The injector problem

[Moli]

Hi, everyone,
My injector only spray with car jump starter power. When I used my battery, it never injector.
And When try output function the injector is ok.
Is it the problem of earth?

Fuel pressure is 3bar.
12V at injector.
There is spark.

Any help appreciated as I'm at the end now

[David Ferguson]

You need to upload your configuration file. Perhaps voltage compensation is incorrect.

What ECU model are you using? What injectors?

What is the ECU voltage when cranking with your battery vs. when the jumper battery is attached?

Is your battery fully charged (it's easy to discharge the battery when first setting up the ECU and you're doing a lot of cranking and not running!