Boost question

[Zsolt]

Sorry I am posting these questions individually, they are just popping to 
my head as I am thinking what I need to fix.

Anyway, I am using Scott Mockry's (SJM) modified ECU and 1.8 bar WG spring, 
but most of the time I do not get 1.8 bar (according to the built in gauge) 
I know it's not accurate, but is it possible it varies so much? I am 
typically getting between 1.6-1.7 bar, and sometimes 1.8. I am also located 
in Calgary, at about 1,000ft elevation. Could that be causing it?

Any ideas? My hoses were replaced, I don't think I have any vacuum leaks, 
but I never replaced my WOT or idle switches. Should I do that? Anything else?

Thanks,
ZSolt
88 5ktq