View Full Version : 99 1.8T Aeb Unitronic Flashed but still holding stock performance 8psi intead of 18

The Overclocker
03-22-2015, 03:00 PM
any ideal why ?

im doing a boost leak test today

wastegate seams ok but not sure how to check it ... i reved the engine at neutral and i did see the wastgate shaft move .. basically doing its job

what could be this reason

changed parts -->

mass air flow
aftermarket Dv

my car has no boost sensor or map sensor , its equipped with a barometric sensor instead located near the ecu

im left hopeless ...