I know I’ve asked this before but I've still got a problem.

I've changed my map sensor, Boost solenoid, spark plugs and Coil packs trying to get reliable boost but still struggling. What happens now is for the first 20minutes I only get 7psi of boost then something changes (possibly that fact I’m doing 70mph of the motorway) and I then get 11.5psi. If I start slowing down i.e stuck in traffic I find sometimes I will continue to have 11psi or I will be back to 7psi until I’m back up to 60/70ish. Does anyone else have this problem, what should I be looking at to fix it?????????

Its hell not knowing if its going to boost me past a car or trying to do full blown standing starts

 

has no one else had this?

 

try checking the actuator arm. it might be sticking?

 

thanks drb5 but how do i check/clean mt actuator arm?