My car has a cell up p0103 Mass air flow circuit high input

03 WRX
40,000 miles

Short ram intake, fp green, forged internals, greddy fmic, hks ssqv, upp, dp, cat back, upgraded injectors

Car runs fine until boost kicks in then it just bogs down and acts like it doesn't want to run and sometimes just stalls.

Clean the MAF sensor first. Search and you will find many methods on doing so on this forum. May I suggest spraying it with non-chlorinated Brake Cleen. Acetone or Laquer thinner also work nicelly.

i tried this any more ideas. come on people i need some help