1986 Nissan Hardbody engine problem

Try using a starting fluid or carb cleaner in the throttle body to check for spark if it fires up you know you've got spark. Then put a funnel in the gas tank, and have someone turn the key to on, don't start. You should hear the hum of the fuel pump. If not then check the fuel pump relay. You can change it out temporarily with another nearby to check this. If the pump runs and the sarting fluid has effect then you've got a spark issue. Id unplug and replug the crankshaft sensor and the ECM plugs first since you've changed the ignition parts