🔌 A-Premium Downstream O2 Oxygen Sensor Replacement for Mazda 3 2006-2009 l4 2.0L 2.3L Non California Emission Standards Verified Review

This automotive sensor failed miserably and was an utter disappointment. While it did provide accurate readings, it only lasted for a mere few months before it completely died. The replacement process was daunting, taking hours and hundreds of dollars to get the job done. Stay far away from this defunct product.

Someone else said that this o2 works in their Mazda 3. A new OEM sensor costs almost $200. I got the old one out from under the car. So far my computer says the heated oxygen sensor is working fine and passing the test. Most cheap sensors don't work at all. This appears to be of good quality.

as I said it didn't work. Installed it on my '08 Mazda 3 2.3L in an attempt to fix a bad O2 sensor after the catalytic converter. I know it's not because I scanned the car. After replacing them with them, the engine light bulb remained, and in addition, it had a negative impact on emissions. Now it is completely unreadable during scanning. Also, the connector wasn't holding in place, so I had to use a zip tie to securely connect the wiring harness. I just left it in place until I got the Bosch…