2003 Mk6 2.4L T350 Fuel pump fuse keeps blowing

[stuee123]

Hi, This morning i started the van normally after it was sat there for the weekend, everything was fine. Turned off and went to pack it. tried to start it again a few hours later and it wouldnt start. It as turning over fine but no start.
I checked back at fuses and found the fuel pump one blown. I replaced it and started it which it did for about 5 seconds then stopped. Looked and the fuse blown again.
I then changed again and turned on the ignition and never tried starting but after a few seconds blew the fuse again.
I had a rough look at the cables and couldnt see any issues (any particular one i should look at)

Any ideas or suggestions for me to try.
I put on the laptop and it shows these errors

===PCM DTC P1665===
Code: P1665 - FIP communications with PCM

Module: Powertrain Control Module

Diagnostic Trouble Code details

FIP communications with PCM

This DTC may be caused by :

Open Circuit

Signal shorted to ground or signal return.

Supply voltage to FIP out of range

FIP supply voltage

FIP

PCM

Carry out the CAN Test.



===END PCM DTC P1665===

===PCM DTC P1665===
Code: P1665 - FIP communications with PCM

Module: Powertrain Control Module

Diagnostic Trouble Code details

FIP communications with PCM

This DTC may be caused by :

Open Circuit

Signal shorted to ground or signal return.

Supply voltage to FIP out of range

FIP supply voltage

FIP

PCM

Carry out the CAN Test.



===END PCM DTC P1665===

===CSM DTC B2550===
Code: B2550 - Dome Lamp Output Circuit Short to Ground

Module: Security module

Diagnostic Trouble Code details

Dome Lamp Output Circuit Short to Ground

===END CSM DTC B2550===