I have zero pressure at the fuel rail. Zero pressure when the key turned on. Zero pressure when the vehicle started. The vehicle does start and run rough, but as soon as you press on the gas pedal the vehicle dies.

I removed the hose at the fuel pump under the rear seat. Attached a hose section to a bottle. When I turned the key on, zero gas. When I try to start the car, gas flows. My understanding is the pump is supposed to turn on when the key is turned to the on position to get fuel into the rail prior to starting.

What do I diagnose next since the pump is at least pumping fuel when the vehicle is started? Just not pressure at the fuel rail.

Edit: No codes, checked with INPA and ISTA