So I see that there are two different types of O2 sensors. For a project I'm working on I need to know if my 97 Accord has narrow or wideband sensors. They are o2 sensors with 4 wires I think but even then there are exceptions and theres not much info on the two types.

 

Your 97's oxygen sensor is essentially a narrow band. Your car still has the basic rudimentary type O2 sensor.

Only beginning in the 6th generation Accords did Honda have an air/fuel ratio sensor (which were a wide band type of sensor) for ULEV engines.

 

Great, thanks.