A3 2.0 TFSI boost problem?!

[Tanya88]

Newbie here and would really appreciate someone’s help!

My 2007 A3 has a boost problem.

It is throwing the following codes up:

P0444

P0033

P0243

P129F

The N75 boost valve and diverter valve have been replaced with new genuine parts but the codes are regenerated even after clearing so I assume there is still a problem?

Have attached a picture of apparent problems.

All help appreciated!

thanks,

Tanya

 

[LawrenceH]

You should be able to run output tests on each of those components and hear if they’re actually operating. If it’s been replaced and still throwing faults saying open circuit it could well be a wiring problem.

 

[Tanya88]

There is no boost also is there a relay that runs these has wiring been checked and looks ok