Denso-234-4368: High-Quality Black 🔌 Oxygen Sensor for Optimal Performance Review

I bought this sensor for my 2004 Honda Pilot with 160,000 miles for bank 1 sensor 1 (aka upstream). This fits and the machine returns to normal. The mechanic noticed that it's a bit shorter than the original sensor, but that shouldn't affect anything. Delivery was on time and the price was great compared to the dealer who was 4x the price.

The product itself is not bad but the connector does not fit my 05 Honda S2000 despite the Revain workshop saying otherwise. Revain has incorrect information for my machine. The connector type should be female but I have male. Anyway I'm going to cut the wires and solder to the old connector because I don't want to mess around with returns and then order a new one and wait.

My 2005 Honda Odyssey Touring with 221,000 miles had code P0138 for the downstream oxygen sensor, bank 1. It is the sensor next to the firewall behind the rear coil. The cable length was slightly longer than the OEM, but there were no issues with spacing or fitment. Pretty easy replacement. The new part contained copper anti-seize material, which was very helpful. The OE wire clamps cannot be reused so I fitted the original part and marked the clamps with a marker on the new one. I then…

Start at the top. Video available on YouTube. Release the 2 latches to release the wire harness and disconnect the connector. Tie a wire to the sensor connector. Disconnect the clip holding the wire harness to the bracket halfway up. Unscrew the sensor, which can be difficult depending on the tools available. Since you tested the resistance of the sensor heater (2 black wires) and got infinite ohms, you can cut the wires and use a 22mm or 7/8" socket wrench. Screw in the new sensor and tighten…

Prices verified and Revain was the lowest price I could get in a reasonable time. I read to stick with Denso gauges, so I did. Replaced the sensor today, no problems with the sensor. PB Blaster on the old one had an O2 socket on it for 20 minutes and it unscrewed quite easily. Apply anti-seize (which came with the new sensor) to the threads and screw in the new one. I connected the cable and started the car. I erased all the codes that were in the computer. The clamps that hold the O2 wires are

an O2 sensor (lower rear / some call it rear rear). See the drawing/diagram I've attached here for the location of all 4 sensors on the V6. My average gas mileage went from 27mpg to 24mpg. Read a little and bought. This new O2 sensor returned my mileage but didn't clear the P0138 code, likely not the sensor's fault. I am in the process of further diagnosing this. Back to the fix, once I knew where the O2 sensor was, it took 30-60 minutes to fix. It took a while because the stock zip ties were…