I have the following Fault Code's - Help Required Please. No Power !

[johnford60]

I have had a fault for a couple of weeks now with intermittent power loss and have another thread open on here about it. t has got worse these last coiuple of days. On the way to my friends how to run VCDS on it i lost all power, I think i lost all turbo power!.


 Faults Found:

 

000564 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)

               P0234 - 001 - Upper Limit Exceeded

             Freeze Frame:

                    Fault Status: 01100001

                    Fault Priority: 0

                    Fault Frequency: 20

                    Mileage: 145435 km

                    Time Indication: 0

                    Date: 2000.00.00

                    Time: 18:49:20

             Freeze Frame:

                    RPM: 6653 /min

                    Load: 81.5 %

                    Speed: 130.0 km/h

                    Temperature: 87.0°C

                    Temperature: 42.0°C

                    Absolute Pres.: 1020.0 mbar

                    Voltage: 13.970 V

 

012403 - Fuel Pump Circuit: Electrical Malfunction

               P3073 - 004 - No Signal/Communication - Intermittent

             Freeze Frame:

                    Fault Status: 00100100

                    Fault Priority: 0

                    Fault Frequency: 2

                    Mileage: 147682 km

                    Time Indication: 0

                    Date: 2000.00.00

                    Time: 17:09:09

 

             Freeze Frame:

                    RPM: 903 /min

                    Load: 25.5 %

                    Speed: 6.0 km/h

                    Temperature: 47.0°C

                    Temperature: 37.0°C

                    Absolute Pres.: 1010.0 mbar

                    Voltage: 14.097 V

---------


Hope someone can help me out?

John

[vRStu]

It looks like the overboost happend a while before the fuel pump.

Have you 'messed around' with the fuel pump at all?

If you clear the codes do they return?  Try checking the fuses for it.

[johnford60]

Not touched fuel pump, and cleared codes,and still drove badly!

[S2 Ant]

I'm not sure but a fault indicating excessive boost would make me want to check for a boost leak perhaps?
I'm still learning my way on these cars.

[nc35]

First thing I thought was a faulty DV.
Not sure about the fuel pressure. Could be a one off 

[john_o]

http://wiki.ross-tech.com/wiki/index.php/16618/P0234/000564
for the first one.
N75 can be replaced , although it happened at close to rev limit so may just be a one off
as others said reset and try to recreate.
BUT if the car feels poor then maybe its the primary issue

a good logging session is required really to work out whats going on