P1198 Volkswagen -

Question

This fault and p0571 and p0102 are coming up reset on management was taken car left to run for 1 hr depressed break pedal and pressed accelerator and p0571 came up first, replaced maf sensor with new but still comes up as fault code, just need some help that's all as you may know how to put it right going to get break light sensor next, cheers
coop