but if the ecu is a 4 wire plug then its only a narrow band as most vehicles are at the moment apart from the latest motors or the old 1.5 vtec honda civic that used a NGK wideband

you cant just put any lambda sensor on it, they voltages need to be correct for the ecu or it wont read proper,, thats why universal lambda sensors dont work that well on all cars

alot of newer cars are using wideband sensors though due to the getting ever stricter emissions laws