2008 Uplander Obd and abs codes
 

I have a few codes on my 2008 Uplander. I've got a p1174 fuel trim balance too rich and p2070 intake manifold tuning valve stuck open. Any Ideas how to fix the codes? I also picked up a couple abs codes as well. Can't remember the exact codes but from everything i've read it seems to be a common problem with the wheel speed sensor or the harness. Anyone else have these issues?