Question about 2003 Honda Accord
Showing- sensor heater circuit bank 1 sensor! Part stores are saying it's the upstream sensor but haynes book says otherwise, downstream sensor; which is the one after the cat! My thought is, on 4 cylender models all sensors will say bank 1; cause it only has one bank! Would be different for V6 models since it comes w/two banks! So, do i change the upstream (before cat) or the downstream (after cat) O2 sensor? Remember getting PO141 code!
Both o2 sensors have been replaced with Bosch sensors and now get P0141 code. What next?? Thanks!
Posted on Aug 22, 2009
Posted on Jun 22, 2009
Testimonial: "Thanks! I figured out po141 is the sensor that goes into the cat after studying few books and trial and error. Part store gave me the wrong info 1st. "
I spoke to a honda tech , and he confirmed code p0141 on the 4cylinder model is the second sensor.
Posted on Aug 28, 2009
Circuit bank,,,, #1 sensor... this is the one before the cat.
Tech note replace both if one is bad the other is just as used.
Posted on Jun 25, 2009
In this case to be honest,I'd replace both. For at the most $60 a piece,just replace them. Use Bosch if available.
Posted on Jun 22, 2009
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Posted on Jan 02, 2017
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