2013 Nissan Qashqai P0299 Fault: Supercharger/Turbo Underboost After DPF Cleaning

Model: 2013 Nissan Qashqai Fault Code: P0299 Posted: 2017-09-09 11:36

Hi, I have a 2013 Nissan Qashqai 1.5 with the engine management light showing red. When connected to an OBD2 scanner, it displays fault code P0299 — indicating supercharger or turbocharger underboost. A specialist previously diagnosed over 60% soot build-up in the diesel particulate filter (DPF), which has been cleaned and resolved. However, the engine management light has returned since then. I'm looking for advice on potential causes of this recurring P0299 fault before returning to the garage. Any insights into possible underlying issues would be greatly appreciated! Thanks in advance.