V8-4.6L,Codes po171, po174, po303, po741

I recently had my car tested and it showed the codes above. My service light is on but sturdy. I have lack of lpower and a rough idle. When I stop my car vibrates with surging on the acceleration. Prior to all of this I had spark plugs replaced and the light was still on. I was told that po352 was misfiring and had a front ignition coil replaced. I am still have problems. My car has been running great. I keep maintenance on my car but all this is new and I am a female, veteran as well as a senior citizen this is the only transportation I have and I want my car running smooth again. Please prov