Review on Denso 234 4015 Oxygen Sensor by Gregory Chaitanya

The Denso 234-4015 is a direct replacement for the Lexus IS 300 B1S2 oxygen sensor. Denso is the OEM of the sensor. Making this repair is easy, but the oxygen sensor socket makes it even easier. Do repairs when the manifold is at ambient temperature, no need to run the engine to warm it up as some blogs suggested. If the old one is stuck, try a PD Blaster or WD-40 and rock the sensor back and forth to remove it. Use anti-seize material on the new sensor.