G8 GT 6.0L A6 P0101 code

[Pro Street]

I need help understanding why this code came on. I tuned my MAF lower scale with STFT and LTFT off and the upper scale with my WB. The wife drove the car about 75 miles this week and did not get this code. I drive the car about 20 miles Friday evening and this P0101 popped up. What causes this code? I do not understand and what do I need to do to correct this code?
Thanks

The only mod is Vararam Cold Air Intake!

[bluegoat06]

Here is a good explanation about that code, http://www.obd-codes.com/p0101
check all the physical parts, then check your tune, post the stock and the modified tune to take a look at it.

[Pro Street]

Here is the stock and the other tune that set off P0101

[bluegoat06]

I think something is messed up with the CAI install. Do you have any logs that would show VE airflow and MAF airflow ?, i'd think your airflow values would have to be really messed up where the MAF is way off for this code to pop up. the MAF needs some smooth work down low, but without logs, i'm just comparing the differences between stock and what you have now. the logs would reveal if your MAF values are screwed up which i really don't think is the case.

[Pro Street]

I think something is messed up with the CAI install. Do you have any logs that would show VE airflow and MAF airflow ?, i'd think your airflow values would have to be really messed up where the MAF is way off for this code to pop up. the MAF needs some smooth work down low, but without logs, i'm just comparing the differences between stock and what you have now. the logs would reveal if your MAF values are screwed up which i really don't think is the case.

Here is my log from today.I retuned my MAF. It has not set this code again. I have drove about 60 miles today. Car is running well! Thanks for the help!