Good day , i just bought a 2018 Range rover Velar D300 R dynamic and i think i will sell it . After only 2 weeks i got the Dpf alarm and went directly to the mechanic . He told me that i have P0234 overboost . I went home and i did some research on internet and discovered that this overboost will not allow the dpf to regenerate . I just changed the throttle valve and the map sensor with a brand new. The problem is that now i got a “full dpf visit the dealer “alarm. And the permanent P0234 error needs some time till will be deleted by the computer. But now i am like in a circle , the dpf is full and will not regenarate because of P0234 and because the dpf is full is also causing new p0234 errors . Please can somebody help me how to fix this ! Thank you guys!