When I pull up my pcm code for logs it has a pid for maf volts but it's lower case and doesnt seem to respond when I log it. If not with livelink, can I splice a voltimeter into the signal wire (which one?) and see what it's doing that way?

Is it safe to assume the car was tuned with the Mafia in place?

Mikel, yes it has been tuned for the mafia and maf combo. I tried to log my maf voltage but for some reason I cant log that specific pid. I think I'm going to try and set the tune up for a pegged maf and see what the does for me ...

Running on setting 3 on stock maf and the car(03 mach1) has a 67mm turbo. The car will rev out fine under part throttle and idle. Once the car gets into boost it looses power bad and stumbles. Maf ad counts read in the 960 range but have noticed the load seems a bit high in the 1.7's on low boost ...