Question about 2003 Honda Accord

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Does anyone know of a site where I can learn how to replace a honda accord 2003 oxygen sensor? How difficult is it? About how long should it take since I have the correct tools? And how do I know which one I need to replace? The mechanic said that the code was: P0141 and that my problem is with my sensor heater circuit bank 1 sensor 2. help

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If you can unscrew a bolt and plug a plug in you can change an o2 sensor. Though some are in odd places. When replacing, ALWAYS use anti-seize compound on the threads or you will never get it out again. Ber careful to keep wire away from hot pipes etc...use tie wraps if you need to.

Posted on Jun 14, 2009


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2005 Honda accord code p2270 that is ?

DTC P2270: Rear Secondary HO2S (Bank 1, Sensor 2) Circuit Signal Stuck Lean

Is this the only code that is coming up? If so, replacing the Bank 1 Sensor 2 Oxygen sensor should fix it. If there are any other engine/drivetrain/emissions related codes, I would recommend ignoring this code for now and fix the other things first, then retest the vehicle to see if this code comes back.

For more information about locating oxygen sensors and repairing oxygen sensor codes, please review the following article:

Which Oxygen Sensor Is It?

What Else Could Be Wrong?

Sep 28, 2011 | 2005 Honda Accord

1 Answer

Replace catalytic converter

The oxygen sensors are easy to replace which takes a 22mm wrench or a special removal tool. The converters are the problem. These to my knowledge have to be welded on. A local shop usually sells aftermarket which are just as good because these have to meet the same standards. For your accord you should need one converter. If the Accord is a 4 cylin it will take 2 oxygen sensors and 6 cylinder takes 3. Usually there are one sensor at the manifold and one at the converter. I would buy aftermarket sensors. I work at Bosch and operate the line that makes these. These look different than your OEM but are actually the same or better. Aftermarket is about $40, OEM is about $70-110. You can buy the converters online cheap, but buying from a shop you can at least show up there if you have problems. You can replace the sensors after the converters are replaced which takes about 10 min to replace. Good Luck

Apr 19, 2010 | 1997 Honda Accord

2 Answers

Where is the oxygen sensor located in a 1991 honda accord

1991 Honda Accord 2.2L FI 4cyl
The Oxygen Sensor is located under hood, driver side, rear engine area, below exhaust manifold flange, mounted in exhaust pipe.
Application: EX model

Good luck.

Mar 16, 2010 | 1991 Honda Accord

1 Answer

I have to replace my O2 sensor on my 1996 Honda Accord LX...Problem is I don't know where it is. This the one I need to replace Oxygen Sensor - OE Type - Exact Fit - Downstream Sensor 4 Wire, Heated. I...

The oxygen sensor should be in a black box on the intake pipe in the engine bay, its usually a case of just loosening two screws and removing the connection. hope this helps.

Dec 29, 2009 | 1996 Honda Accord

2 Answers

Emission code po141 what is the problem thanks

P0141 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 2

HI, this code if for a fouled O2 sensor that you will need to replace asap.

Jun 01, 2009 | 2003 Honda Accord

1 Answer

O2 Sensor replacement

On Honda Accord the O2 sensor is located either on the exhaust manifold near to the front or side of the manifold, or in the manifold rear side, depending if it is a four or six cylinders model.

To give an idea of the job, check this website showing the procedure on a different car:

How to Replace an Oxygen Sensor -

To find step by step for your car, I suggest buying the Haynes manual.

To order the part you can use the website below, or buy it at a local car parts shop.

Honda Oxygen Sensor - Oxygen Sensors -

Feb 21, 2009 | 1986 Honda Accord

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