Peugeot 207 starting stalling issues

Well, those symptoms could point to a few things, but given they all appeared at once, it sounds like the fuel system. Think of it like a water faucet that's sputtering – could be low pressure, a clog, or something else entirely. Have you noticed any difference in performance recently, like a lack of power when accelerating?

Yeah, it does feel like it's struggling a bit when I try to accelerate quickly. What exactly do you mean by 'fuel system'?

By 'fuel system', I am referring to the components responsible for delivering fuel to the engine. Considering the error code, rough running, and starting issues, there's a strong possibility of a defective fuel pump or a fault in its electrical connections. However, without a thorough diagnostic process, it is difficult to ascertain the root cause of the problem with absolute certainty. It would be prudent to have a workshop perform diagnostics.

Thanks for the help. Took it to a local mechanic, and it turned out to be a loose connector on the fuel pump. They cleaned and secured it, and it's running fine now. Total cost: 95€.