A3 TDI sport back fault codes

[hades-]

I know nothing about diesels so any help would be very welcome.

my daughter has a A3 sport back BKD 2.0 TDI 2007

car drives perfect with the power is should have.
but goes into limp mode. here are the codes I have.

000564 - Boost Pressure Regulation
P0234 - 000 - Limit Exceeded (Overboost Condition)

001025 - EGR System
P0401 - 000 - Insufficient Flow - Intermittent

I know what thy mean etc.

but what way around would be the best way to start ? the EGR was cleaned by me a few month ago

TIA

 

[max69vk]

This should help you: http://wiki.ross-tech.com/wiki/index.php/Category:Fault_Codes

 

[hades-]

iv looked at that.

my question is where should I start ?

with the EGR or sensors turbo etc.
can the EGR cause the other codes or can the other codes cause the EGR code.

 

[phil miller]

you have two faults, the first is sticking turbo vains, which can be caused by a faulty EGR valve, it needs cleaning as a bare min, as for the turbo the only way to cure that is to remove and strip and clean, or replace

 

[hades-]

cheers phil

 

[Sayam]

First of all I'd clear the codes, drive the car and then rescan to see which ones come back...

 

[hades-]

that's the first think I did sayam

 

[Sayam]

Fair enough.

P0234 - http://wiki.ross-tech.com/wiki/index.php/16618/P0234/000564

I'd go for the sticking turbo vanes options and although it can be cured with Mr Muscle it needs the turbo removed, cleaned and refitted.

p0401 - http://www.obd-codes.com/p0401

I'd fit an EGR blanking plate or removal pipe and remap the car, subject to the turbo of course.

 

[hollows wife]

dont need to remap it can just do an egr delete in the map if need be

 

[hades-]

its my daughters car so no remap no egr delete

turbo off and sent for recon and egr ready to clean.

 

[Sayam]

its my daughters car so no remap no egr delete

turbo off and sent for recon and egr ready to clean.

Fair enough and the rest should sort the problems