Why can an aftermarket CAI cause this code?

 

Too much air movement on the mass air sensor.

 

Thanks for the reply, I have an S&B CAI that's been on my truck for about two years and for the last couple weeks I keep getting this code. The truck only has 29k miles. Trying to figure out what's causing the code. I drive it short distances and I haven't seen a regen light in a long time. Any suggestions? Tks