Where is the oxygen sensor located on a 1994 850 Volvo sedan?

On a 1994 Volvo 850 sedan, the oxygen sensor is typically located on the exhaust manifold or just after the catalytic converter. For the pre-catalytic converter sensor, you can find it on the exhaust pipe leading from the engine. The sensor is usually threaded into the exhaust system, making it accessible for replacement or troubleshooting. Always refer to the vehicle's service manual for specific details and diagrams.