my 91 lumina died on me at a light,had it towed home,started tinkering,had the ignition module tested,it tested good,i am gettin fuel at the valve stem,sprayed startin fluid into the intake,still nothin,it gets spark,i have replaced the coils,and the crank sensor,still wont start,can anyone tell me what i might check

 

You might have a bad injector.
If one goes out, they all get turned off to protect the ECM.

are you getting fuel in the cylinders?
That is the next logical choice considering you have spark.

Fuel pressure is good on the rails right?
Make sure the fuel pressure regulator is not broke and dumping gas up the vacuum line...