my blazer is getting fuel but will not start I`m also getting fire to the plugs
Are the injectors getting power? Are the injectors getting momentary grounding from the ECM? — IF---- the fuel pump is operating it might be assumed that the injectors are powered and the ECM is on. The ignition control module relays an rpm signal to the ECM which is necessary to trigger the injector pulse signals. Try a module. It’s the cheapest and simplest likely problem.