where is the ecm fuse located on a 1991 chevy astro van?

are you getting power to the fuel pump, i doubt if it has anything to do with the ecm. did you change the filter? check the relay if no power. does the check engine light come on if you turn the key to the on position?

it's getting fuel I change the router to router cap

Yes THE lights come on change d rotor and cap, plus the ignition coil