Help required with 3 engine fault codes

[Timmsy21]

Hi all

So I scanned the car today trying to figure out why my central locking system keeps locking and unlocking at low speed by itself. No faults logged

Anyhooo I spotted 3 engine faults. My first thought after some googling is a possible bad n80 but any input would be helpful.
I’m running pretty much stock but with a DV+

  Address 01: Engine       Labels:
Control Module Part Number:
  Component and/or Version:
           Software Coding:
            Work Shop Code:   
                      VCID: 55F77D93EC02CD8FC9F-FFFE
3 Faults Found:

000665 - Boost Pressure Regulation
               P0299 - 002 - Control Range Not Reached - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 2
                    Fault Frequency: 5
                    Reset counter: 255
                    Mileage: 144853 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 14:22:54

             Freeze Frame:
                    RPM: 4781 /min
                    Load: 80.4 %
                    Speed: 128.0 km/h
                    Temperature: 70.0°C
                    Temperature: 31.0°C
                    Absolute Pres.: 980.0 mbar
                    Voltage: 13.970 V

000135 - Fuel Rail/System Pressure
               P0087 - 002 - Too Low - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 2
                    Fault Frequency: 3
                    Reset counter: 255
                    Mileage: 145736 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 18:49:44

             Freeze Frame:
                    RPM: 3291 /min
                    Load: 92.9 %
                    Speed: 133.0 km/h
                    Temperature: 73.0°C
                    Temperature: 23.0°C
                    Absolute Pres.: 990.0 mbar
                    Voltage: 14.224 V

001089 - EVAP Emission Control Sys
               P0441 - 002 - Incorrect Flow - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 2
                    Fault Frequency: 4
                    Reset counter: 255
                    Mileage: 146029 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 12:34:29

             Freeze Frame:
                    RPM: 838 /min
                    Load: 20.8 %
                    Speed: 0.0 km/h
                    Temperature: 72.0°C
                    Temperature: 25.0°C
                    Absolute Pres.: 970.0 mbar
                    Voltage: 13.970 V

[bobby_fodge]

I'm pretty sure that bottom one is the charcoal canister and pipework.

[pudding]

First step is to clear the codes and see which ones come back, but the top one could be a sticky DV+.  The brass piston can bind in the alloy housing and is why I stopped using that DV.

The second error could be a worn HPFP cam follower, or the sensor on top of the pump could be cracked?

The third error is a pain in the arse and sometimes requires a new N80, new charcoal can, new charcoal can pipe and a new fuel filler cap to completely resolve.   Start with the cheaper items first.  Some folk also find brimming the tank causes that error, but that's never happened on mine.