Car cranks it trays to start but will not

What is your question?

Car cranks it tries to start but will not start smell like it's flooded car has spark and 38 psi of fuel pump psi .It has cam and crank single.If I unplug all injectors it run good for 5 sec .Then stops. if I plug them back in same thing unplug injectors and it runs 5 sec and dies. Ohm all ECM wires There all good. Replaced ECM It does the thing. HELP . Thank you

What makes this problem better or worse?

Nothing

How long has your 2002 Buick LeSabre had this problem?

More than a week