91 regal turns but doesnot start

my regal will not start. i changed the plugs and wires and injectors and no change i need help i can't get to work.there are no codes coming up.

check to make sure fuel is reaching the injectors if not it could be faulty fuel pump or fuel pressure regulator. If thats not it check to ensure plugs are getting spark(remove a spark plug wire from plug slide rubber boot back carefully so you don't damage the wire, hold it close to a ground don't hold with your hand use rubber grip pliers have someone try to start the car. You should see it arc between plug wire and ground.) If not it could be broken, loose or damaged wires at ignition coil or faulty coil. If thats not it ceck the starting ciruit for loose or damaged wiring. Also check all fuses. I hope this helps solve your problem. It is a real pain to find the cause of the problem when you don't get a cumputer error code.

have you checked either the Ignition control module, or the crankshaft position sensor the cps is about $20 and ign module about $80-$100

try going to the junkyard and take a ignition control module from a couple of EXACT make model and year engine regal (no interchange) and try changing that i had the same problem and my ignition control module tested perfect 90 time in a row(usually fails under heat) (plus i was bored) anyways i changed it out and it perfect now