508 GT - P0299 Turbocharger pressure regulation fault

[rinor]

hi im having simular problem peugeot 508 2011 2.2l hdi low boost but no foult codes i did a dyno test it reads only 155 hp at stage 1 i have 185 :/ ?

[jxy127]

Hi to whom might have this problem
Start by having the air mass flow sensor at the air filter diagnosed.
And be sure to use newest diagbox for this diagnose. I was using 7.12 or there about and getting the P0299 code for underboost. When i updated Diagbox to latest at this time 9.149 the code changed to P0100 air mass flow meter.
Changed the AMF and it's Like a brand New car.

Hope this helps so we can keep this fantastic car going a while longer

Best to you all