Oxygen Sensor Failure: Symptoms and Replacement

Oxygen Sensor Failure: Symptoms and Replacement

Quick Answer: Oxygen sensor failure usually shows up as poor fuel economy, rough idle, or a check engine light. Most O2 sensors last 80,000–120,000 miles. Replacement is typically a moderate DIY job costing $80–$250, versus $250–$600 at a shop. That Cold Morning When the Check Engine Light Wouldn’t Quit It was a gray Tuesday morning, … Read more