I have just had my fuel pump and tank replaced. The fuel injectors and intake cleaned. also fuel filter replaced all this done costing over 1000. I get it back and it ran fine for about a week then it started losing power. Was driving and it would just start dropping. I can pull over and let it rest and it will start back up and run for 5 minutes and then start losing power again. I had the code but cant remember waht it was but I looked it up and it said it was an oxygen sensor bank 1 sensor 1. Well my husband changed one sensor but its still doing the same and hes unsure about which sensor is which. What Im wondering is will a bad sensor make the truck run like that and so its possible my husband changed the wrong one? or is there something else that could be wrong? Any help would be appreciated.