How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Z. Your Own Question
Ron Z.
Ron Z., - Honda Tech -
Category: Honda
Satisfied Customers: 17665
Experience:  18+yrs experience. State Inspector and Honda Diagnostics
Type Your Honda Question Here...
Ron Z. is online now
A new question is answered every 9 seconds

2005 Honda Accord: cyl..Check engine light..gas cap..oxygen sensor

Customer Question

2005 Honda Accord 6 cyl. Check engine light is on and code indicates gas cap or oxygen sensor. Made sure cap was tight, and light still on after a week. I have instructions on how to replace the oxygen sensor and understand that it requires special tools that apparently I can borrow from auto zone. Two questions:
1. In your opinion should a novice mechanic attempt this repair? I do my own brakes and oil, have replaced cruise control switch, A/C Switch and fan, but that is about the extent of my experience. How difficult/complex is this repair?
2. If i do replace the sensor on my own, how do I reset the light?

Submitted: 4 years ago.
Category: Honda
Expert:  Ron Z. replied 4 years ago.

Welcome to! My name is DriveFast71(Ron) and I will do my best to answer all of your questions completely and accurately.


Do you happen to have the "p-code" associated with this? The Oxygen Sensor and Fuel Cap are in two seperate systems. One code with not be "either a fuel cap or oxygen sensor" - I'd like to verify your diagnosis, and if an Oxygen Sensor, determine which one- this vehicle has 4 of them.

Customer: replied 4 years ago.
Good old auto zone didn't tell me that! P0141
Expert:  Ron Z. replied 4 years ago.

Ok. P0141 is an Oxygen Sensor code. Nothing to do with the Fuel Cap what-so-ever (God Bless AutoZone employees....)


The P0141 is pointing to a fault with the internal heater for the Oxygen Sensor at Bank1, Sensor2. The on-board computer uses this internal heater to get the sensor to normal operating temps within a matter of seconds on cold starts. Inspect the electrical connector for any loose or broken wires. If the visual inspection checks ok, replacing the sensor should solve the problem. There is a special tool that will make the job a little easier: Oxygen Sensor Socket - which you can usually rent at any "big chain" parts store. This isn't a bad DIY'er job at all. This sensor is located under the vehicle, mounted to the exhaust.


Customer: replied 4 years ago.

Ok thanks for the answer, and the diagram. What about resetting the light afterwards?


The next time I have an issue, is there a way to get back to your personally? I have two teenagers with Honda Accords (2003) (2005) and it seems like once a mth Im doing something minor to one or the other. I've talked to some other JustAnswer guys that were not as helpful, so if I can use you for future issues I would like to.

Expert:  Ron Z. replied 4 years ago.

While replacing the sensor, you should remove the "NEG" cable from the battery. This will ensure no electrical "mishaps" while doing the job, and it will also "clear the codes" from the on-board computer, resetting the Engine Light.


I do believe there is a "request" button somewhere on the Just Answer home page. If you cannot find it, simply use my name in your next question, and I will get it (use "DriveFast" as there are a couple of "Ron"s here!)


Ron Z., - Honda Tech -
Category: Honda
Satisfied Customers: 17665
Experience: 18+yrs experience. State Inspector and Honda Diagnostics
Ron Z. and 3 other Honda Specialists are ready to help you
Customer: replied 4 years ago.
Got it. Much appreciated!
Expert:  Ron Z. replied 4 years ago.

Glad I could help! Have a great day!


JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • Thank you very much for saving my daughter and her family a lot of money on her Honda. You are definitely on my list for future help. Thanks, again. Fred USA
< Previous | Next >
  • Thank you very much for saving my daughter and her family a lot of money on her Honda. You are definitely on my list for future help. Thanks, again. Fred USA
  • I just heard from my mechanic. You were right...a $45.00 job. THANK YOU!! Your response was received in less than 10 minutes!! Linda B. USA
  • Your answers were clear and the diagrams were perfect. Dealer wanted $87 for an hour of labor and even I did it in 15 minutes. Ed USA
  • HONDA PLATINUM was great. I really appreciate his help. I was ready to trade my new Honda until he told me to wait until I got 3,000 miles on it and my gas mileage would get much better. Summer USA
  • I took the Power Steering O-Ring service bulletin linked from JustAnswer to my Acura dealer, and not only did they no-charge the o-ring, they also replaced the power steering pump at no cost. Gary R Stevenson Ranch, CA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA

Meet The Experts:

  • Kyle N.

    Kyle N.

    Honda Master Tech

    Satisfied Customers:

    Honda Dealer Tech, ASE Master Auto Tech
< Last | Next >
  • Kyle N.'s Avatar

    Kyle N.

    Honda Master Tech

    Satisfied Customers:

    Honda Dealer Tech, ASE Master Auto Tech
  • John G.'s Avatar

    John G.

    Honda Technician

    Satisfied Customers:

    Dealership tech since 1982. ASE and Honda Master Technician.
  • Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)


    Satisfied Customers:

    16 years of experience
  • Marty's Avatar


    Bosch Master Tech

    Satisfied Customers:

    Bosch Certified Master Technician
  • Amedee's Avatar


    Former ASE Master Technician

    Satisfied Customers:

    ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
  • Ron's Avatar


    ASE Certified Technician

    Satisfied Customers:

    ASE Certified Tech 34 years.
  • thebesthonda's Avatar


    ASE MasterTechnician

    Satisfied Customers:

    26 years experience