Problem: 2010 Mazda 3 with intermittent check engine light.
Cause: The exhaust oxygen sensor failed and is 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. This is a very common problem, and replacing the oxygen sensor is a necessary part of emissions-control maintenance. Most vehicles have multiple oxygen sensors, usually one before the catalytic converter and another after, and V6 and V8 engines have an oxygen sensor on each side of the engine.
Repair: Check engine light diagnosis and oxygen sensor replacement. Our auto repair technician scanned the vehicle's computer for error codes and confirmed that the upstream oxygen sensor was not sending the correct data. Remove and replace oxygen sensor. Note: Oxygen sensors typically last the same amount of time. Replacing multiple oxygen sensors as a set will prevent returning for failure of the other oxygen sensors soon after replacing the first failed oxygen sensor.
Tips: Oxygen sensors are a very important part of the engine fuel control and emissions control systems. Besides the greatly increased pollution caused by a faulty oxygen sensor, fuel mileage will decrease, engine power will be reduced, and other engine parts can be damaged. Ignoring and failing to replace a failed oxygen sensor will quickly damage spark plugs and the catalytic converter. Replacing a catalytic converter is a very expensive repair! A check engine light problem should not be ignored.
Contact Hoover Street Auto Repair for Check Engine Light CEL repair in Ann Arbor. We specialize in Asian auto repair service in Ann Arbor, MI, including Mazda service and repair.
Call Hoover Street Auto Repair in Ann Arbor at (734) 913‑6272 to schedule your check engine light diagnosis today.
Hoover Street Auto Repair
142 E Hoover Ave
Ann Arbor, MI 48104
(734) 913-6272