i have a 1992 eg vx and i put in a b16 and a p28 ecu. everythings good except i have a check engine light for 02sensor heater. so i searched and found how to convert the 5wire o2 sensor to the 4 wire that the p28 uses, i did it and still same code for o2 sensor heater. does anyone know how to do this and make it work? i hate seeing the engine light on and my car is drinking gas because of this. any help would be great