Car Problem Reports

Honda Accord Check Engine Light Due to Failed Air Fuel Sensor or Oxygen Sensor

Honda Accord Problem
24 Reports
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Model Years Affected: 2003, 2004

Exhaust & Emissions Affected: 2.4L 4 Cylinder

Average Mileage: 99,825 mi (54,000 mi - 155,000 mi)


Issues with the air fuel sensor (oxygen sensor) can set a Check Engine Light.  A failed sensor will need to be replaced for this repair.


  • Visitor, , 126,000 mi

    The O2 sensor is allegedly bad. This might be a computer problem mis-reading. Honda recommended a fix. You can read about it here:

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  •  Enthusiast

    Check Engine Light (CEL) came on. I went to Autozone and had the codes read. P0507 and P0141 came up. I bought the Bosch OEM replacement for the secondary sensor that screws into the catalytic converter. The wire from the oxygen sensor comes up through the floor board under the right front seat and plugs into an OEM connector. Be sure to replace the oxygen sensor with an OEM version, so you can easily plug it in without cutting any wires, etc.

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  • Visitor, , 105,000 mi

    My 2004 engine light came on. Diagnosis revealed a failed oxygen sensor. I think I paid about $185 to have it replaced in Tacoma, WA.

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  • Visitor, , 120,130 mi

    Check engine light; 02 sensor; bank 1, sensor 1.
    Repair quote from Roberts Automotive $398

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  • Visitor, , 89,412 mi

    Software Update - Didn't Work
    Replacement of 1 Bad Sensors

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  •  Rookie

    o2 sensor problem, bought Denso For $79 changed myself

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  • oxigen sensor bank 2 not working

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  • Engine lite came on....had a computer check ran....oxygen sensor was bad....replaced...runing great now.

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