Check Engine Light Due to Failed Air Fuel Sensor on Honda Accord

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.


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Average mileage: 103,801 (54,000–165,000)
Exhaust & Emissions affected: 2.4L 4 Cylinder
2 model years affected: 2003, 2004
27 people reported this problem
9 people shared problem details
2004 Honda Accord126,000
The O2 sensor is allegedly bad. This might be a computer problem mis-reading. Honda recommended a fix. You can read about it here:
3 people like thisFlag inappropiate
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.
2 people like thisFlag inappropiate
2004 Honda Accord63,000
I took my car to a Honda dealership because check engine light came on. They said it was the 02 sensor and would repair it for 497.00. I said no thanks.
1 person likes thisFlag inappropiate
o2 sensor problem, bought Denso For $79 changed myself
1 person likes thisFlag inappropiate
2004 Honda Accord105,000
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.
1 person likes thisFlag inappropiate
Engine lite came on....had a computer check ran....oxygen sensor was bad....replaced...runing great now.
1 person likes thisFlag inappropiate
2003 Honda Accord120,130
Check engine light; 02 sensor; bank 1, sensor 1. Repair quote from Roberts Automotive $398 :-(
2003 Honda Accord89,412
Software Update - Didn't Work Replacement of 1 Bad Sensors
oxigen sensor bank 2 not working
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