Where is a 02 sensor located on a 04 Mazda tribute?

On a 2004 Mazda Tribute, the O2 sensors are located in two main areas: the upstream (pre-catalytic converter) sensor is found in the exhaust manifold or just after it, while the downstream (post-catalytic converter) sensor is located further along the exhaust system, after the catalytic converter. Accessing these sensors may require lifting the vehicle for better visibility and reach. Always ensure the engine is cool before attempting any work on the exhaust system.