94 Honda Accord new master relay fuel pump and good continuity check on ignition switch, plug wires for relay and ecu.. Replaced ecu with automatic 95 accord everything was the same on the board except a round looking diode. Engine starts then dies. Have a obd code 22 engine light which is oil psi sensor. I can turn the switch back and forth after start and it still trys to die. Anyone got a clue what to check next?