UPDATE! 2016 Fiat Doblo 1.3 MJTD P2563 SOLVED! Due to burnt vacuum line!!

When the turbo failed, it clogged the DPF with oil, which exploded, and burnt the undertray, turbo rubber pipe, a wire loom, and The VACUUM line!! Which gave me so much headache till I managed to pinpoint it!
I cut the damaged section ans replaced it with a silicone tube!
It drives like a dream now!! :)