s70 t5 boost cutting and running S**T
 

just had it put back on the road and everything seems fine until i put the power on and it hits 10 psi. then it sounds like its missing or a coil pack has gone. It should be running 20psi. If i drove it at half throtle everywhere then i wouldnt notice but its realy bugging me now! im taking it to get the codes checked tomorrow but just wondered if u guys could shine any light on it.

Cheers :)