Use a code scanner to check the engine diagnostic codes. If you see any problems fix that first. If there are no issues, check fuel pressure at the fuel rail test port. If the fuel pressure is low either at an idle or when driving under full power, check and/or replace the fuel filter.
check the fuses
Do a compression test Check for plugged catalytic converter
use a noid light set to determine if pulse is going to the fuel injectors.
check your fuel filter, injectors, catalydic converter, if it has a Carb. check it
check computer and odbI codes !
check your battery connections (maybe loose wires)
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check your fuses if all good check to see if there is power going to the fuel pump if so then replace the pump
the computer and the ignition module give power to the injectors.
Injectors that have a resistor in the power supply are called
Replace you ignition module, It controls both spark and power to the injectors. You can have spark but the module may be bad and not giving power to the injectors and the vehicle will not run.
No pulse signal to injectors (bad injector relay or PCM driver circuit).