2010 Mazda 3 Intermittent Check Engine Light Problem Repair

2010 Mazda 3 with intermittent check engine light. Cause: Exhaust oxygen sensor failed and not sending the correct data. Oxygen sensors do wear out. Mazda oxygen sensor replacement is a periodic exhaust system maintenance due to normal engine operation. Repair: Check engine light diagnosis. Oxygen sensor replacement. Tips...

What Does It Mean If My "Check Engine" Warning Light Comes On?

Answer: There are many sensors and computerized engine components that manage your vehicle’s engine performance and emissions. When one of these parts fails, the “check engine” light is switched on. Although your vehicle may appear to run fine, it is important to have a check engine light diagnosis to prevent serious, long-term problems.