S3 down on power


Registered User
I have a 2009 s3 with stronic box I have recently done the timing belt and chain ever since I'm down on low end power until the turbo eventually kicks in but low end it has no power the vehicle has no fault codes and and the engine runs smooth I have checked the timing marks 3 times all of the marks line up and the cam locking tool fits in while the marks are lined up and ideas people I have got a mass air flow sensor coming for it tomorrow to try it