Where is the p0133 sensor located on 2003 ford Windstar?

The P0133 code refers to a problem with the oxygen sensor circuit, specifically the upstream oxygen sensor (O2 sensor) located before the catalytic converter. On a 2003 Ford Windstar, this sensor is typically found on the exhaust manifold or the front part of the exhaust system, near the engine. To access it, you may need to lift the vehicle and remove any protective covers or components obstructing the sensor. Always ensure the engine is cool before attempting to work on exhaust components.