Originally Posted by Fabrik8

Stock MAF sensor tuning isn't setup to deal with different flow velocity from an aftermarket intake, which is why tuning is needed. There is probably nothing wrong with the sensor, it's the stock ECU tuning.

Look into a Cobb Accessport or sometihng along those lines; there are off-the-shelf tunes available for light mods like your intake.

I do think the problem you're having with the engine shutting off is something more than just the different intake though, I think you caused another problem with something during the install.