Grande Punto 2007: Error P0089 1.3 Multijet, Check Light On - Replaced Sensors & Filter

Welcome to the point, such an error pops up and the check starts. Replaced sensors on the rail and the regulator. The fuel filter is new and nothing. What to look for

Injections on transfer.

I will check and let you know.

Added after 38 [minutes]:

There are almost no differences, so what next?

Added after 42 [minutes]:

I would like to add that the error pops up under load, i.e. at a standstill it normally screws up and walks, goes on the road and bangs the error almost immediately. And the error description is the performance of pressure regulator 1.

Look into the fuel tank, maybe a blocked sieve?

The injectors are most likely not holding pressure. During acceleration, the pressure on the rail drops, which informs the ECU and we have an error.

Can it be confirmed somehow at home or only injections on the machine? The pressure on the rail is about 300 bar at idle. Not too much?

Do the injector overflow test. He will definitely say something, it does not take much time.
I'm betting an injector or two is not holding pressure.

I wrote before I did and there are hardly any differences between the injectors

Added after 7 [hours] 6 [minutes]:

Today I pulled the pump out of the tank, it was a little bit full, I cleaned it and no reaction, the same thing. But when I had it pulled out, I connected it for a short time and when it is full, it pumps normally, and when it is pumped out, it is not possible to pour fuel into it, should it be? I know that the fuel is also poured there from the return. Speaking of transfers, is it some value, how much should you transfer? Somewhere I read that 150 ml in 4 minutes at idle for all cylinders.

Check the fuel filter again .... please ..

The filter is ok.

It seems to me that the injectors need to be replaced. In the overflow test, it happened to pour 20ml for injection within 30 seconds, so the diagnosis is probably simple?

Yes. They don't hold pressure.

I close the topic. Injector fault.