🚗 High-Quality Set of 2 Upstream and Downstream Oxygen Sensors for Toyota Corolla Matrix 2003-2004 Pontiac Vibe Review

The upstream downstream sensor delivers reliable performance and increased fuel efficiency for your automotive needs. It provides accurate readings of the oxygen levels in your engine and helps reduce harmful emissions. However, installation and compatibility with certain vehicle models may be a challenge. Overall, a great addition to any automotive repair and maintenance routine.

Perfect fit and the "Check Engine" light no longer comes on. I was impressed with the quality including the anti-seize compound on the threads.

Installation went well, installation was easy. There were issues with the top sensor giving erratic readings, resulting in an error code that had not previously occurred prior to installation. The result is a reinstallation of the native sensor. So half the sensors are working. Let's continue to monitor the downstream sensor to see if there are any issues. In the event of a defective sensor, speak to the seller if possible.