Engine Randomly Shuts off - won't start until clear codes
 

I have this weird issue that has always been around.

I can drive it daily with no problem, then out of nowhere (usually once a month) I put it in reverse and the car just shuts off and shows a few codes. The car will not start back up until I clear all the codes.

The codes I get are:
https://cimg9.ibsrv.net/gimg/ls1tech...8a089bb1b5.jpg

The following codes are always there since I am SD tuned:
P0102 - Mass or Volume Air Flow A circuit Low **This is because I'm SD tuned
P0103 - Mass or Volume Air Flow A circuit High **This is because I'm SD tuned


Anyone have experience with this??