Truck cuts off when coasting to a stop

Hey so my 2010 4.0 taco has been cutting completely off while coasting or coming to a stop, and the check engine light would come on and go off after shutting truck off later in the day... also when i use my after market remote start it will cut off sometimes before the 20 minuet timer is off... a little background on the truck. Around 90k miles, URD true cold air intake & A/F calibrator, headers and exshaust upgrades as well. This started happening when i ran over a street sign while playing in the snow on an empty road‍♂️. I had it scanned, the mechanic said replace the MAF... did this. Still cuts off only differences is the check engine lights doesn’t come on anymore.... has anyone come across an issue like this?

 

My 2000 would do this once in awhile when getting off the interstate .

It would not Trip the MIL so no codes to chase down.

I have no clue what I might have done Normal Maintenance cured it about 80,000 miles ago

 

I hear ya, i keep up my normal maintenance. I’ve got my scan tool hooked up to it and both long term fuel banks are reading around -17. So I’m thinking it’s an O2 problem... taking it into the dealership so they can run a test and tell me what’s up.