my car has a b16 in it was running fine until sunday afternoon I went out to start it and it idled fine for about 20-30 sec then completely shut down. It will turn over fine just won't start. so I went in this oder of what I replaced Cap, Rotor, spark plugs, igniter, wires, coil, and it still won't start cause i'm not getting spark.

tell me what it could be I'm thinking my ecu.

how do I read trouble codes???

could the Ecu be telling the motor not to start because something else is wrong??

please help I've wasted like 200 bucks and i'm sick of riding the bus. thanx