
New Denso 234-4623 Oxygen Sensor (Air and Fuel Ratio Sensor) Beat the OEM oxygen sensorBy kai2000 Sienna check engine light (Code P0136) came back on again a few hundred miles after replacing the O2 sensor with OEM part (made by Denso too). I was skeptical first as the image was different than actual piece but took a chance because this direct-fit sensor is much cheaper than Toyota part. Received sensor has same OEM quality except cable is little longer except you've to position the rubber boot. Instruction is clear. It's been 4 months and no check engine light. It should be noted that this Denso 234-4623 is O2 sensor (near catalytic converter), not A/F Ratio Sensor (near engine) as titled.1 of 1 people found the following review helpful. »
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