alero still shuts off

2000 alero still stalls n wont start someone else on here had a problem with the bcm under the passenger side of the dash would that cause a starting n no start problem it cranks over but wont start. thanks for any imput.alero still shots off

It would help to post which engine you have and mileage.

Have you checked fuel pressure?

X2, do what Bob said, he knows his stuff.

it is a 3400 v6 with 118000 miles fuel pressure is 45 to 50 lbs it seems to run a few seconds but wont keep running then it may run n beabler to drive

Change both the fuel filter & air filter.
1) Do another fuel pressure test. >41psi might indicate a bad fuel pressure regulator.
2) Do a Catalytic converter back pressure test.