hi there people, i've got a 1999 uk impreza turbo and only mod's are cat back exhaust and air filter, but its recently started boosting to about 1.2 bar and instantly dropping to 0.5, i had a new air flow meter, had the restriceter drilled out a little and ecu reset, after a couple of days its doin it again................... any ideas

 

Try cleaning the boost solenoid mate more than likely that .

Rob

 

righto cheers, where would i find that or is it a job for the garage????

 

u can do it yourself its the metal solenoid on the drivers wing mate.