in-tank pump indication or symptom on N54 35i

[naikai]

hi

what is the indication or symptom of in tank pump on N54 engine. today, while i got on traffic the engine stall and shut down so i have wait couple minute and restart the engine. it getting a little bit better but the idle swing for 10-15 second so i went back home. the engine light show up as well. thank you for your help.

i have replaced High pressure fuel pump and pressure converter last year.