[Solved] Renault Premium 450 dxi 2008r - Błąd MID 128 PSID 98 FMI 1

Hello, I have a problem with the Premium dxi 450 from 2008, so I will start from the beginning. During the ride with the loaded set, the error of the nox sensor mid 128 ppid 270 fmi 2 was displayed and of course the power limitation for 50h was replaced with the new sensor, but after replacing the problem did not stop something touched me to unscrew the nozzle from the catalyst and what turned out that the catalyst previous owner bored. The catalyst was replaced with a second regenerated one because the price of the new one knocks down, the problem with power limitation ceased, but while driving with a loaded car, the error appears mid 128 psid 98 fmi 1 - boost pressure too low. And now the question is what is the correct boost pressure for dxi11, when I get driving a loaded set of 40 tons of total weight, autocom showed the maximum boost pressure value of 196kpa, I will add that two different new boost pressure sensors are the same, + 5v power supply and weight are on the sensor, whether turbine replacement is waiting for me or another reason for low boost pressure ? Can the VTG valve get stuck and how to check if the pear is pushing or pulling the barbell? Please help.

So dear friend in your case, I guess the tractor worked its time on emu. Drilled executioner etc. it was already strongly bred there. I suppose the reason for this remains unknown. See how the power supply, mass and CAN look to the NOX sensor. The 1.96 bar boost pressure you describe is good. I tested Magnum DXi EEV on max turbo charge, gave 1.89 bar and power and adblu worked as it should. I also had a car losing pressure on a functioning turbo, it turned out that the WESTGATE valve did not close. Adjustment on the pear string did the trick.

Thank you for your interest in my problem, I checked the meter for the transition from the nox to the pump - all 4 cables have a transition, the voltage on the nox plug is 24v on the blue wires, brown and purple is a twisted pair, between brown and mass is 2.6v a between the purple and the ground is 2.35 volts the measurements were made on a disconnected plug.
I will add that there is no message about the power reduction as it was before the replacement of the kata, only the indicator light from ad blue lights up and the above-described low charge pressure error appears. When replacing the catalyst, I also replaced the ad blue injector with a new (unused), the adblue takes normally, after switching off the system cleans up - the power seems to me that I have no comparison with another car with this power, combustion within 31.6 / 100 km on routes 130 km one way empty return the same route 130 km 26 tons of cargo.
Autocom still shows such errors as the picture, they are turned off and without the date of occurrence and can not be deleted.

Added after 25 [minutes]:

And one more thing, the error about low boost pressure occurs only when driving up a significant hill with a loaded set, when driving on flat terrain or small hills loaded car does not occur. What can it be

The errors you have are related to emissions and are saved by the controller for a specified period of time, they cannot be deleted. However, given that the engine system and adblue control during diagnostics report errors in a duplicate way. That is, in the engine cassette there are engine errors as well as adblue and vice versa. It is possible that during the climb uphill, when the engine controller reports the boost pressure error, adblue also lights up a cloud warning because it sees engine problems. I think it would be wise to test the car with uphill loading, observe the course of recharging. Computer diagnostics allows you to observe the course in the form of a graph so if there is a problem with the turbo you will certainly see it. It is possible that the overload protection valve opens too early and the pressure in the intake manifold drops.

Hello, the cause of the low boost pressure error was the turbine, after replacing the turbine with another used problem disappeared, the turbo now charges to 2.2 bar, but the pressure of 1.9 bar on the previous turbine is definitely not enough for dxi11, which in turn generated MID 128 PSID 98 FMI 1 error and the adblue indicator light up.
Thank you all for your interest and helpful tips.
greetings