I have just bought a 150 manual 21 with 9k on the clock, acceleration is a dogs dinner below 2k, takes off there but can be up and down with power delivery through rev range sometimes…not consistent, got it checked yesterday and sods law the drive to stealers felt fine after 2 weeks of varying lumpy power delivery, picked up this morning and felt a little of it again, less than has been but there they said nothing wrong when road testing yesterday and no codes. Also noticed today turbo making loud whooshing noise for first 2-5 mins driving, i am hoping blocked injectors and cleaner I put in is starting to work it’s magic (hence inconsistent issue) anyone experienced similar and found a solution? Love the van but makes commuting almost dangerous when expecting it to go and it lags, takes off, lags again etc