I believe my maf is going out since when cold the car seems to stutter and not run so well until it warms up;Also got a new awe boost gauge and have been watching boost psi; In stock mode what should i be seeing for boost in psi? Then for APR 91 oct what boost and what would i get on the 93 oct program?

<ul><li><a href="http://pictureposter.audiworld.com/44443/giac-x_and_apr_boost_log_041705.jpg">APR 93 boost and RHP curve on 92 oct.</a></li></ul>