It kind of happened over the course of the day.. like I realized it was taking more to get it to start and by the end of the day my civic wouldent start anymore... so first I thought it must be the fuel pump or the ditributor... so I bought a whole new distributor assembly and cap and new spark wires and that didn't do anything... also I checked the pump and it is fine.. the service engine light comes on for 2 seconds when the key is on.. and then flashes as the car cranks... please does anyone have any suggestions to fix this

Year make model?

Could be a bad MAP sensor, which sends information to the ECM concerning spark advance and air/fuel mixture. If it is bad, the car will crank but not start. All attempts to check for engine spark will be futile. If all fuses are good, turn the ignition on and disconnect the MAP sensor connector and wait for several minutes and see if the Check Engine Light goes out. If it does, replace the sensor, which is very expensive.