Codes P2198 and P0153?

I purchased this truck on February 15th, and as I was driving home the check engine light came on. I have an OBDII scan tool, I went through an entire system scan and P2198 was the first code. That same day I personally replaced the O2 sensor. I erased the module. On the 17th the check engine light came back on except the code was now P0153. I replaced that O2 sensor as well. Since the 17th I am getting the P0153 code. On February 24 I replaced all the fuses that are related to the PCM. On February 27th I replaced the fuel filter.

This truck has been in Pennsylvania and Michigan before I bought it, so it has a good bit of rust. I live in Georgia for reference. I am going to be looking into the quality of the air filter as well as the mass air flow sensor. The exhaust system is also rusted. The car sometimes jerks forward when accelerating. Before I replaced the fuel filter the exhaust smoke was white, I haven't been able to see the smoke since then. When I drive it, there doesn't seem to be a bad smell. It does go through gas quickly. On Wednesday I had 3/4 tank, I have driven maybe 60 miles since Wednesday and I'm already at 1/4 tank. Any help would be appreciated. I do plan on replacing the exhaust system because of the rust, I'm just not certain if that is the cause. This morning on March 1 I took out the air filter and it is fairly clean. I have not taken out MAF yet, I want to wait and see what one you suggest.