Need help figuring out what to do. Car is running real sluggish. Driving down the road it spits and sputters. I have to floor it at times to get it to go. Ran the trouble codes and got #1-Oxygen Content, and #9-Number 1 cylinder position. I have tried to find out information online about these two codes and I can not find anything. What can we do to fix these problems? My husband thinks we might have a bad fuel pump, where do I go from here?