STi2 RA.
Usually pulls 1.2 bar, holds 1.1, thanks to Scott T and a piggyback board.
Recently it sometimes only pulls .8 and then increases slowly, sometimes 1.2 and tails off earlier than usual.

any ideas?
suspecting boost control solenoid, or a leaky pipe (bugger!). not expecting it to be easy to trace though....

simon

 

Boost Control Solenoid sticking or tired actuator, maybe.
Try cleaning Solenoid and or tightening the rod on the actuator.

 

thanks scott.
will clean the solenoid this morning and try the actuator. how many turns should I tighten it?
cheers,
simon