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Old 02 Oct 2007, 06:30 pm
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Posts: 6
Default 1996 Honda Engline light- it's back!?

I had the engine light on for a while, but all ran fine, ignored it. Then I went for my emissions test (WA), failed it. Error code was P0141: O2 sensor heater circuit bank 1 sensor 2. So took my car to a nearby garage and got the sensor replaced. Took it back same day to the testing station and passed, despite the 02 sensor not being ready yet (needs like 5 hot/cold cycles to reset or something). Now, 2 days later, the light is back on! I suspect the mechanic of tricky business. Can you reset the code and fool the computer at the test station? Can you switch one sensor with another or something? Or, is this a case where some other part of the engine may be messed up, causing faulty error codes down the line? Can I visually inspect to see that the guy actually did install a new part? I'm too noob at the moment to know if I should be pissed off, or concerned, or what.
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Old 02 Oct 2007, 06:33 pm
Join Date: Aug 2007
Posts: 75

It sounds like the ground on the sensor is intermittent. You may want to trace it away from the cat and see if it's worn through on something.
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Old 02 Oct 2007, 06:36 pm
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Join Date: Aug 2007
Posts: 276

p0141 is a o2 heater code...there is no way to trick it as soon as u turn the key on that code will rest if its not right... chances are that he replaced it with an aftermarket o2 sensor more than likley a bosh and hondas do not like bosh...hopefully he wasnt an iddoit and cut the wireing harnes...o2 sensor harness should never be cut.....u need a 02 sensor from honda...that o2 sensor is either in or after the cat i cant remember
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Old 02 Oct 2007, 06:40 pm
Join Date: Aug 2007
Posts: 85

Hey, I had the same problem with mine a few years ago, I had replaced mine with a senser from Oriellys, it turn out to be that the sensor worked just fine, but the computer had an issue with it. I replaced it with a Honda brand sensor, and the problem never came back. You also might inspect the wire and the plug for and burn spots or bare wire. Unless you know, and trust your mechanic alot, always ask for your old parts back. There is no way to fool the computer on this one, once the code is cleared, it will take the computer a matter of seconds to find the error again after you start the engine.Hope this helps, Good luck
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