At idle, once warmed up, my pressure guage reads 0 or maybe a needle width above it. When I get the revs up and boost starts to kick in I run at a normal 4bar (60psi). From what I've heard, idle pressure should be around 2bar. Is this a problem that will get worse or has something already fucked up?

 

possibly a weak OMP

 

any ideas on where to pick up a new/used one