Mass Flow Air Intake

[Ubel Feuer]

So I replaced the mass flow air sensor after the dealer told me it was borked, and saved myself 400 dollars they wanted to do the install on top of the 200 dollar part cost.

It sounds great accelerating now, very smooth. Except now when idling at a light the engine turns off. It vibrates for a few seconds and then nothing, all the notice lights come on as if I had just turned the key twice to turn the radio on.

Edit: This is our QX4, not my pathy. It's a 2001.