Ecm-211a - faulty signal

[Zaro97]

Hello , its my first thread and i hope you could help with the problem


The car has

1)loss of power and torque (low turbo pressure) 0.5 bar

2)the car at idle may got minor instantaneouslt stall suddenly and minor backfire you can hear if you are beside the exhaust

Scanning using vida it gives me

Ecm-211A Fuel Pressure - faulty signal


By checking live data

1)Fuel pressure is 400kpa at idle

2)pump duty cycle 63% sometime inc to 73% and sometimes instantaneously drop 27% and back to 60th

3) made fuel pressure sensor test (at rail) at idle its 300kpa

I think all reading are normal, anyone has explanation ?

[jonesg]

normal at idle but what about under load.

[Zaro97]

normal at idle but what about under load.

Under load pump pressure output and nominal prssure required are close to each other ..nearly the same

You can check the video i attached..you might notice somthing i didnt

[jonesg]

maybe give more information,
is this car new to you,
did it run good previously,
have you done any work recently?
is it a new fuel pump ?