2.0 hdi fuel low pressure malfunction

My vehicle is 2.0 hdi adventure 2008 model partner. Misfire at idle, not eating gas, fault lamp on and when the lamp lights up, it cuts fuel, so it stalls. Diesel recycling, fuel line, sensors, auto brain, diesel pump, injector, rail are all tested. It was sent to different places once and it arrived intact. We installed a brain and pump from another vehicle. The problem is the same. I wonder if we tried it in private services.

There is no question of the vehicle moving, the light turns on at least 5 times on the 200 meter road, the vehicle cuts the gas.

Sir, what error does it give when connected to the computer, have you checked?