Where is oxygen sensor Mazda Mx3 sensor?

In the Mazda MX-3, the oxygen sensor is typically located in the exhaust system, either before the catalytic converter (upstream) or after it (downstream). For most models, the upstream sensor is mounted on the exhaust manifold or just after it, while the downstream sensor is found further along the exhaust pipe, after the catalytic converter. To access it, you may need to lift the vehicle or remove components in the engine bay for better visibility. Always consult the vehicle's service manual for the exact location and installation details.