accord ecu issues

  1. S

    F23A1 Swapped

    I have a 2000 Accord Coupe that had an F23A1 engine swap, but the F23A4 ECU was not. I am getting all sorts of error messages. I got an ECU from an F23A1, but when I put it in the car won't start the green key is flashing. I was told it would be the immobilizer, can I flash the immobilizer or...