can an exhaust leak mess up my maf sensor or o2 sensors? I took my car to a shop and they found an exhaust leak right before my middle cats and the gasket on my driver side cat had a leak as well. got it welded and got the gaskets replaced. before I took it to the shop I drove my car with my maf unplugged because my car would bog and die with it plugged. when driving with the maf plugged, i have had my car die on me a lot of times, when my air con is on and when i turn it off, my car bogs and dies immediately. so I have no idea what is wrong? could the exhaust leak have been the problem?