Where is the 2007 chevy aveo o2 sensor located?

Oxygen sensors in the 2007 Chevrolet Aveo are located upstream and downstream of the catalytic converter near the intake manifold. Some symptoms that You might be experiencing if You have a bad oxygen sensor are higher than normal fuel consumption and excessive smoke coming from Your exhaust. The oxygen sensor in Your vehicle measures oxygen levels in the exhaust gases exiting the engine. The oxygen sensor should be replaced every 60,000 to 90,000 miles. This sensor is a wear item and does fail over time.The sensor is about the size and shape of a spark plug and protrudes into the car engine's exhauSTStream. It determines if there is a lot or a little oxygen in the exhaust, so the engine can make adjustments to the amount of fuel being used in the engine to run at maximum efficiency.