Vacume lines
may have bad solenoid or vacuum leak that way say redo it all also spray some wd40 in the wastegate solenoid it maybe sticking and wastegate solenoid IS NOT inner changeable with EGR they have diff color dots on them
K good thing u said that was gona try one inplace of it any idea of a price incase i need one. i also noticed a lot of blowby at turbo intake connection so i tightned everything do u think its due to turbo not working rie it started around same time.Or maybe pcv valve plugged?
cost on it 30.00 to 40.00 i think the blow buy could be tuna can take it off and clean it with gas and let dry good before putting it on what blow buy you get will end up in turbo and intake you will alway see some oil in there


