Sylvie Willis
If you own a 2004 Honda Civic, you may need to replace the air fuel ratio sensor. This is because a faulty air fuel ratio sensor can cause poor performance and hurt your wallet. The air fuel ratio sensor works in partnership with the vehicle's CPU to determine whether the fuel vapour provided to the engine needs to be adjusted. If you notice rough idling or a drop in fuel economy, this could indicate that your air fuel ratio sensor is not sending the right signals to the engine to improve fuel usage. You can replace the air fuel ratio sensor yourself, but if you are unsure about any aspect of the replacement, it is best to hire a professional to do it correctly.
| Characteristics | Values |
|---|---|
| Difficulty | Requires skill in working on cars |
| Cost | $321.85 to $377.48, with parts and labour |
| Savings | Parts can be bought online for less than from a service technician |
| Models | Only for 04-05 Civic EX/Si models; other 7th gen Civic models are similar but not the same |
| Warning signs | Check engine light, rough idling, drop in fuel economy |
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$47.99
What You'll Learn
How to identify a faulty air fuel ratio sensor
You can identify a faulty air fuel ratio sensor by checking the sensor signal with a scan tool. If the sensor is faulty, the engine may hesitate or show poor acceleration, particularly when there are sudden throttle changes or during acceleration from a standstill. This can lead to sluggish performance and decreased responsiveness. You may also notice a decrease in fuel efficiency or engine power output, as well as a rough idle.
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Where to buy a new air fuel ratio sensor
You can buy a new air fuel ratio sensor for your 2004 Honda Civic from a variety of places. PartsGeek.com is one option, where you can buy the part for a competitive price. You can also buy the part from Amazon.com, which has a range of air fuel ratio sensors, including the Denso 234-9001 Upstream Air Fuel Ratio Oxygen Sensor. You can also buy the part from Walmart.com, which has air fuel ratio sensors for the 2004 Subaru Impreza WRX.
If you are unsure about any aspect of the replacement, it is recommended that you hire a professional to do it correctly the first time.
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How to change the air fuel ratio sensor
If you are skilled in working on your car, you may be able to change the air fuel ratio sensor yourself. However, if you are unsure about any aspect of the replacement, it is recommended to hire a professional to do it correctly the first time.
A faulty Honda Civic Air Fuel Ratio Sensor may hurt your wallet through poor performance, so replacing it will save money in the long run. The cost for a new air fuel ratio sensor for a Honda Civic 2004 could be $321.85 to $377.48, with parts and labour. Parts are generally charged as the full price for the component, and the labour is how much your service technician charges per hour to complete the job. This hourly rate can vary widely depending on where you take your Honda Civic for repairs or part replacement. You can opt to buy the part online from PartsGeek.com to spend less on your post-2004 Honda Civic air fuel sensor. You will save money by paying competitive prices that are usually much less than what your service technician will make you pay.
Your air fuel ratio sensor works in partnership with the vehicle's CPU to determine whether your fuel vapour provided to your engine needs to be adjusted. A correctly configured Honda Civic Air Fuel Ratio Sensor continually tracks the amount of oxygen going into your vehicle's cylinders. You may notice when your check engine light comes on that there are other problems with your Civic. Rough idling or a drop in fuel economy could indicate that your air fuel ratio sensor is not sending the right signals to the engine to improve fuel usage. If you notice any of these issues, get your system checked out and install a new sensor if needed.
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The cost of a new air fuel ratio sensor
You may be able to save money by buying the part online, and if you are skilled in working on your car, you may be able to fit the sensor yourself. However, if you are unsure about any aspect of the replacement, it is recommended that you hire a professional to do it correctly.
Advance Auto Parts sells air-fuel ratio sensors for the Honda Civic from $26.67, but it is not clear whether these are suitable for the 2004 model.
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The difference between an air fuel ratio sensor and an O2 sensor
The air fuel ratio sensor works in partnership with the vehicle's CPU to determine whether the fuel vapour provided to the engine needs to be adjusted. It continually tracks the amount of oxygen going into the vehicle's cylinders. This is different from an O2 sensor, which only measures the amount of oxygen in the exhaust gases. The air fuel ratio sensor is more expensive than the O2 sensor, but they cannot be interchanged.
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Frequently asked questions
You may notice that your check engine light is on, or that your car is experiencing rough idling or a drop in fuel economy. These could be signs that your air fuel ratio sensor is not sending the right signals to the engine to improve fuel usage.
The cost for a new air fuel ratio sensor for a Honda Civic 2004 could be $321.85 to $377.48, with parts and labour. Parts are generally charged as the full price for the component, while labour is charged by the hour.
If you are skilled in working on your car, you may be able to change the air fuel ratio sensor yourself. However, if you are unsure about any aspect of the replacement, it is recommended that you hire a professional to do it correctly the first time.
You can buy the part online from PartsGeek.com, where you will find competitive prices that are usually much less than what your service technician will make you pay.
