LFA rough running and stalling

I also own a LFA, and those symptoms do sound familiar. Check your fuel pressure sensor cable and plug connection. Is it perhaps defective?

Thanks for the tip! Where exactly is this cable and plug connection located? And how can I tell if it is defective?

Think of the fuel pressure sensor system as the brain regulating the engine's fuel system. Just like a body relies on its heart, an engine relies on fuel delivery. A defective cable connection is like mixed signals to the brain - and that leads to confusion. In your case, because the cable and plug connection are somewhat difficult to get to, I'd recommend a quick trip to the workshop. If it's that, you are probably looking at around 95€

Thank you SO much! You were right! Ended up being the cable/plug connection to the fuel pressure sensor. 95€ repair. You saved me a ton of worry and money!