Once in a while at startup I get a ABS and PSM light. I restart a few times and it clears. Car runs great. I have a stage 2 with Evo intake with dry filter. I replaced 1 maf when I had oiled filter. Do MAFS go slowly, or all at once? Could these symptons be something else?

 

Mine gave no sign.... Running great/Then ABS/PSM failure....

 

Get the codes read (I feel like i say this a lot). Why play guessing games? Codes can be read at autozone, dealer or get your own..durametric.