Review on 🔥 Denso 234-9012 Air-Fuel Ratio Sensor | 4-Wire | Direct Fit | Heated | 7.09” Wire Length by Alfredo Testerman

I read some reviews here on Revain to make sure this O2 sensor works for the bank 1 sensor on my 2007 Toyota Sienna Sienna LE with a 3.5- liter engine was. And that. I bought this Seosor Denso 234-9012 and put it on the Sienna. Then I drove the van 25-30 miles and the check engine light didn't come on so the O2 sensor worked for now. You will need an offset O2 socket to remove this sensor, the socket is a 3/8" disc. Removing a sensor is a difficult task to disconnect and reconnect that sensor. You will need a good bright flashlight to look inside the motor to see the plug/connector and a small screwdriver to depress the locking tab on the plug. a socket that holds the plug of the sensor into a socket. Be patient. Located inside the engine above the cross frame. Check out YouTube where this O2 sensor is located and also download engine diagrams. You can find online where all four O2 sensors are located on the engine.