Hello folks, the saga continues with my car yet again 

When I picked the car up, I put my foot down, and it hesitated, engine revs fell,  then picked up again. The same thing happened this morning aswell, aroung 50mph.
I was at a set of traffic lights today, pulled away, same hestitation, then the engine cut out. Car was stranded for 30 minutes and would not start up at all, then all of a sudden, it fired up, and away it went.
I logged the fault codes as listed below.
I looked at rosstech, and I fitted a new OEM hfpf earlier this year, can follower was fine 2 months ago, I had bought a new low pressure fuel sensor of someone from this site a few months ago, but unfortunately I left my spare on the APR pump when I sold it 

I did some datalogging, and the fuel pressure is fine, if anything it goes higher than requested?
Has anyone got any ideas as to what it can be, as I dont fancy being stranded at a set of traffic lights for half an hour again!
hursday,10,November,2011,17:59:27:36725
VCDS Version: Release 10.6.4
                Address 01: Engine       Labels: 06F-907-115-AXX.lbl
Control Module Part Number: 1K0 907 115 L    HW: 8P0 907 115 B
  Component and/or Version: 2.0l R4/4V TFSI     0030
           Software Coding: 040300031C070160
            Work Shop Code: WSC 66565 257 00032
                      VCID: 2F4B212BC78D
4 Faults Found:
012555 - Low Pressure Fuel regulation: Fuel Pressure Outside Specification  
               P310B - 002 - Lower Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 0
                    Fault Frequency: 2
                    Mileage: 73640 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 06:16:26
             Freeze Frame:
                    RPM: 2407 /min
                    Load: 22.3 %
                    Speed: 34.0 km/h
                    Temperature: 84.0°C
                    Temperature: 18.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 14.097 V
000135 - Fuel Rail/System Pressure: Too Low 
               P0087 - 002 - Lower Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 0
                    Fault Frequency: 2
                    Mileage: 73640 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 06:16:28
             Freeze Frame:
                    RPM: 2205 /min
                    Load: 37.2 %
                    Speed: 31.0 km/h
                    Temperature: 83.0°C
                    Temperature: 18.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 14.224 V
000135 - Fuel Rail/System Pressure: Too Low 
               P0087 - 008 - Implausible Signal - Intermittent
             Freeze Frame:
                    Fault Status: 00101000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Mileage: 73663 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 17:31:56
             Freeze Frame:
                    RPM: 1589 /min
                    Load: 23.1 %
                    Speed: 23.0 km/h
                    Temperature: 83.0°C
                    Temperature: 20.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 14.224 V
009236 - Oxygen (Lambda) Sensor B1 S1 Voltage too Low / Air Leakage / Sample Error 
               P2414 - 008 - Implausible Signal - Intermittent
             Freeze Frame:
                    Fault Status: 00101000
                    Fault Priority: 0
                    Fault Frequency: 1
                    Mileage: 73663 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 17:31:57
             Freeze Frame:
                    RPM: 1444 /min
                    Load: 16.9 %
                    Speed: 20.0 km/h
                    Temperature: 82.0°C
                    Temperature: 21.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 14.224 V
Readiness: 0000 0000