ok.. i might have been wrong about it being code 63... this is what code 63 says.. :
63- Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98
Oxygen Sensor, Heated - Sensor 2 (Secondary)
high voltage, low voltage, or slow response
my car (and ECU) is an '89...