#.0 litre vin code u P0171 P0174 indicate both banks lean, cure the lean problem and the other o2 codes will probably go away. I would check for a vacuum leak, Smoke machine is the best way. Also remove the air flow meter and look at sensor - 2 very small wires, they are probably dirty, clean the flow meter, I use carb cleaner spray can, blow dry with lite air pressure, critical that the flow meter not be dirty, those wires should be white - inspect with magnfying glass if needed, re-install flow meter clear codes, test drive. Also , if flow meter was contaminated, replace air filter.