Oil pressure light comes on when engine is hot and Rev over 1200 rpm put new oil pump and new balance shaft

[Chaudrey]

hi got a oil pressure light problem it’s a 2012 Passat 2.0tdi cffb engine I’ve put new oil pump on and balance shaft new oil switch and new tappets also new rockers but light still comes on when hot and rev over 1200 rpm it’s got 240 k miles on it I know it’s high but serviced it all the time by head is done in no idea what else it could be wondering if anyone else had this problem thanks si