ok so my stock turbo started acting up the other day and im not sure what it is. i think it could be a wastegate problem. when i drive i give it about half throttle and hold it there and when the turbo hits 30psi it drops instantly down to 20 then slowly climbs back up to 30 then drops again. When im at full throttle it sometimes will hit 40 psi and sometimes wont go past 30. Any ideas?

 

sounds like a wastegate problem to me also check the boots to just in case