but the MAF did so he tryed clearing it got rid of the MAF
it still might come back and if it does you simply might have to get a new one that you just pull out of the intake and push the new one in. make sure its in as far as it should be and make sure the little rubber gromet is sealing the way it should.

as far as your abs light goes. if u know what bad hubs sound like then it could be that. they usually come with new wheel sensors so that should eliminate ur problem. i recommend the Timken brand. they last forever.