What is the 2001 Dodge Ram 1500 o2 sensor location?

You have 2 o2 sensors on Your truck. The o2 sensors for a 2001 Dodge Ram pickup 1500 are located right where both pipes come into the cat and one about a foot behind the cat. Some symptoms that You might be experiencing 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.