I checked all the fuses there fine all my ground wires good now one ? i still have the 2.0 ecu in there if i changed the motor should i change the ecu as well and put the ecu for the motor i put in? would that shut off the spark? What about the main relay could that be a problem also? does a 90 prelude have crank position sensor that may be bad and cut off the spark can someone give me any ideas