The Nissan Navara 2.5 diesel is a popular choice for those seeking a capable and reliable workhorse. However, some owners have reported issues with the vehicle going into "limp mode" during the MOT test, particularly when accelerating. This unexpected behavior can be attributed to several factors, including: (1)Turbocharger problems (2) faulty mass airflow sensor (3)boost pressure sensor issue (4)EGR valve problems (5)fuel injector issues