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 lorunner Your Own Question

lorunner
lorunner, Auto Service Technician
Category: Honda
Satisfied Customers: 1070
Experience:  13yrs honda tech, 18yrs in the business, ASE certified, honda school and training
Type Your Honda Question Here...
lorunner is online now
A new question is answered every 9 seconds

-----: 93 Honda Accord Check engine light Code 43..SE..engine code

Resolved Question:

93 Honda Accord Check engine light Code 43

--------------------------------------------------------------------------------

I have a 1993 Honda Accord SE with 130000 miles on it. It recently started having the check engine light come on when you drive at a steady speed for about one mile and above 30MPH and Sitting still in netrual at a higher RPM for about1-2 minutes. It sets an engine code of 43 and when you turn the engine off the light does not return until you repeat the above.
So far I have replaced the fuel pump, fuel filter, EGR Valve and one 02 sensor(the sensor I replaced some time ago but did not help), you have to turn the ignition on wait several minutes before it will start.
Submitted: 6 years ago.
Category: Honda
Expert:  lorunner replied 6 years ago.

Ok code 43 is fuels supply or O2 code.

Which O2 sensor have you replaced?

Does the car have any oil leaks?

Does the car drive abnormal? hesitate, buck, etc.

I have seen where the engine is leaking oil. That oil makes its way into the connector for the front O2 sensor. Since the O2 is located in the pipe at teh rear of the motor, slightly under the oil filter. When the oil gets into the connector it causes the readings to become out of whack and the PCM sets a code for it.

Customer: replied 6 years ago.
It only has one O2 sensor and I did pull the connector and clean it.
No the car does not drive abnormal? hesitate, buck, etc.
When I changed the O2 sensor several months ago it was a Bosch plug in.
Expert:  lorunner replied 6 years ago.

So there was oil inside the connector?

Was the problem gone when you put the O2 in a few months back?

Customer: replied 6 years ago.
Yes there was oil.
No after cleaning it did not solve the problem.

By the way the check engine light will come on any time the engine is above 1400 to 1500 RPM when the throttle is at a steady state for 1 to minutes and will not come on at idle.
Expert:  lorunner replied 6 years ago.

So once you replace the O2 and cleaned it it didnt even last through its first drive?

This is reminds me exactly the problem i had. I replaced the O2 sensor 3 times but the car was ok for a few weeks. Finally i had to replace teh engine harness. Once the oil gets inside you can never get it out.

Customer: replied 6 years ago.
Is there anything else that can cause the same problem, before I change the 2 and harness.
Expert:  lorunner replied 6 years ago.

you can always try to make a piece of harness and bypass the section that goes down under the intake to the sensor. Essentially taking the oil soaked part of the harness out of the picture. If the problem is gone than you know for sure its the harness.

The connector by the O2 is connector c105. There is another spot by the right strut tower where connector C210 is. that connector houses the same wires as C105. You can try to back the pins out of c210 and run new wires down to the O2 ans see what happens.

graphic

lorunner, Auto Service Technician
Category: Honda
Satisfied Customers: 1070
Experience: 13yrs honda tech, 18yrs in the business, ASE certified, honda school and training
lorunner and 6 other Honda Specialists are ready to help you

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... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...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
< Last | 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.

    Honda Master Tech

    Satisfied Customers:

    3627
    Honda Dealer Tech, ASE Master Auto Tech
< Last | Next >
  • http://ww2.justanswer.com/uploads/hondatech/2010-05-03_025935_resized_work_pic.jpg Kyle N.'s Avatar

    Kyle N.

    Honda Master Tech

    Satisfied Customers:

    3627
    Honda Dealer Tech, ASE Master Auto Tech
  • http://ww2.justanswer.com/uploads/hondacb77/2008-10-27_165606_me3.jpg John G.'s Avatar

    John G.

    Honda Technician

    Satisfied Customers:

    2643
    Dealership tech since 1982. ASE and Honda Master Technician.
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    204
    16 years of experience
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    175
    ASE Certified Tech 34 years.
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    Bosch Master Tech

    Satisfied Customers:

    113
    Bosch Certified Master Technician
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Technician

    Satisfied Customers:

    1112
    ASE Master Technician advanced level specialist. Wisconsin certified emissions state inspector
  • http://ww2.justanswer.com/uploads/TH/thebesthonda/2011-1-15_04510_Photo022009005.64x64.jpg thebesthonda's Avatar

    thebesthonda

    ASE MasterTechnician

    Satisfied Customers:

    2299
    26 years experience
 
 
 

Related Honda Questions