As the title reads, I have a 2010 Charger V6 with the auto. The car hasn't been shifting properly at all, it goes up to 4k then shifts or doesn't shift at all sometimes. When I took it for a diagnostic at autozone, the codes that came up were: P0073, P0073, and P0841. I'm not really worried about the P0073 codes (please let me know if I should be) but I am worried about the P0841 code. It said Transmission fluid pressure sensor/switch A circuit range/performance. I was wondering where I would be able to find the part and how I'd go about fixing it. All I'm hoping is that I don't need a new transmission.