working on a 1990 ford probe GT. OK so its not a honda but I need help. I have little experiance with turbos. the boost is not kicking in. is there a method of checking the waste gate, could it be stuck open; not alowing it to spool? how does the boost control solenoid valve work? is it a common part? it has a compressor bypass valve...how do I know it works right? the unit itself is an IHI. I'm a turbo retard. I need help.