So my new to me (2016) T6 blue motion t28 (2.0.. with 103 miles on the clock)just had a full service ( 4 days ago) and the EGR light has come on…( I have had it 4months and it’s been fine) it had and oil clean additive and new oil..( we didn’t know when it had had a full service only records of interim service so it had the full works) but now it stinks and smokes ( smoke stinks) no blue or white smoke just more than before exhaust smoke but sinks ( makes your eyes sting if you stand at the back) do I need to take it for a high rev drive?? Would an oil clean do this?? Or an oil filter change??? .. not sure what to do now.. any help would be appreciated….update just taken it for a run and he lights gone off..