Review on 🚗 Enhanced Denso 234-4215 Oxygen Sensor by Juan Anderson

This part finally fixed my Check Engine light and VSC light problem. Even after the replacement, I noticed a significant improvement in acceleration and gas mileage. I originally replaced 2 air/flow sensors (preinstalled upstream) as the trouble codes identified the ones that needed changing, but after replacing both, the code eventually said that this sensor needed to be replaced. The swap was a bit of a hassle as the sensor is at the bottom of the car in the exhaust pipe from the engine to the rear and the bolts are rusted and I also had to remove the seat to unplug it. Overall I was happy to get a replacement from an OEM and saved over $100 in part cost by purchasing a similar non-OEM part and over $200 buying from a dealer. I recommend replacing this sensor first before the airflow sensors, or replacing them all at once.