could be nafew things
check for power at injectors
both wires will show 12 volts due to feedback from other injectors
u can have spark but no injection because toyota ecus stop injection if engine doesnt start after afew turns to stop flooding
best thing to try is spray aerostart in intake and if it starts its fuel related then check fuel lines pump pressure etc
remove return line and crank engine see if u have good fuel comin back