Polo twin charge cav engine burns oil and smoking on odd occasions

Hi guys, got a head scratcher. Got a polo twin charge CAV but not totally sure what will rectify the fault. At times when changing gears or stopping at lights drowned in white smoke, is also burning oil. Fine at idle and when revs is quite clean.
Fault codes 11505, manifold barometric pressure, 14751 EVAP emissions control, 7797 lambda b1 s1.
Anyone got any ideas please.

First we'll need to see a full Auto-Scan.

I think the symptoms would point to a turbo oil seal failure causing oil to be drawn into the inter cooler, inlet manifold and then burnt causing the excessive white smoke and sensor faults. They are also prone to cracked valves and cylinder heads, which again causes excessive oil use