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 mark Your Own Question

mark
mark, BMW Technician
Category: BMW
Satisfied Customers: 177
Experience:  Senior BMW technician,NVQ 3 CITY GUILDS 3 RTITB Level 3
12479248
Type Your BMW Question Here...
mark is online now
A new question is answered every 9 seconds

BMW: 83,000 miles..service engine soon light comes..run fine and I

Resolved Question:

I have a BMW x-5 4.4i with 83,000 miles. The service engine soon light comes on with codes 26 and 27. It seems to run fine and I only use 91 octane fuel in it. The only modification to the vehicle is a K&N air filter. I think it is running too lean as long term fuel trim is 19.5 to 22 on each bank. Thank You
Submitted: 5 years ago.
Category: BMW
Expert:  mark replied 5 years ago.

Hi,

I'm not to sure on the fault codes you have,what type of scanner are you using.?

I think you should check the valve on the back of the inlet manifold these leak air and cause the engine light to come on.Is the oil filler cap hard to pull off or the dip stick to pull out as these normally are the faults for this valve.

Also try spraying brake/carb cleaner around the inlet and air pipes and if the engine tone changes you have a air leak.

Possible in lnlet manifold gaskets.

Hope this helps.

Thanks,mark

 

Customer: replied 5 years ago.

We have an OTC Genisys scanner with european 2005 software. The exact code it gives is as follows: Ox1B (27) LR - Adaptation Multiple Area 1 (Bank 2) and

Ox1A (26) LR - Adaptation Multiple Area 1

When I scan it with the global OBD II software it comes up with: P0171B Bank 1 System too Lean. It would seem like the intake is leaking to cause this problem. I will definately accept your answer Thank You

Expert:  mark replied 5 years ago.

Your welcome any more info you need,just drop me aline...

 

Thanks,mark

 

mark, BMW Technician
Category: BMW
Satisfied Customers: 177
Experience: Senior BMW technician,NVQ 3 CITY GUILDS 3 RTITB Level 3
mark and 3 other BMW 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:

 
 
 
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Last | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • 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
 
 
 

Meet The Experts:

 
 
 
  • Roger

    BMW Master Tech

    Satisfied Customers:

    2906
    10 yrs. experience as BMW Master Technician, shop foreman and dealer.
< Last | Next >
  • http://ww2.justanswer.com/uploads/Guest/2008-02-15_191551_avatar.jpg Roger's Avatar

    Roger

    BMW Master Tech

    Satisfied Customers:

    2906
    10 yrs. experience as BMW Master Technician, shop foreman and dealer.
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    ASE Certified Technician

    Satisfied Customers:

    406
    ASE & Bosch Certified Master Tech. Over 30 years experience.
  • http://ww2.justanswer.com/uploads/DA/dansciol/2012-7-7_16177_danpic.64x64.jpeg bimmaster's Avatar

    bimmaster

    BMW Technician

    Satisfied Customers:

    1817
    3 years dealer experience, master bmw tech
  • http://ww2.justanswer.com/uploads/bmwmaster/2009-05-09_062111_avitar.jpg Sam's Avatar

    Sam

    BMW Master technician

    Satisfied Customers:

    1043
    BMW S.T.E.P. graduate, 10 years BMW dealership experience
  • http://ww2.justanswer.com/uploads/hondatrx450/2010-01-18_231606_stuff_092.JPG mike's Avatar

    mike

    BMW Technician

    Satisfied Customers:

    694
    bmw master tech ase certified
  • http://ww2.justanswer.com/uploads/CA/caprio23/2011-12-13_155550_20111213105344.64x64.jpg Anthony's Avatar

    Anthony

    BMW Technician

    Satisfied Customers:

    628
    ASE Master Automobile Technician with over 20 years exp. in this field.
  • http://ww2.justanswer.com/uploads/bmwbum01/2009-12-28_205712_germany2000.jpg Thebmwbum's Avatar

    Thebmwbum

    BMW Foreman

    Satisfied Customers:

    533
    31 years BMW Experience