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 gomi_otaku Your Own Question

gomi_otaku
gomi_otaku, Technician
Category: Audi
Satisfied Customers: 2654
Experience:  VW certified technician, Chicago VW/Audi Training Center, Seattle VW/Audi Academy
12249065
Type Your Audi Question Here...
gomi_otaku is online now
A new question is answered every 9 seconds

audi: tdi v6 avant 2002 with 120k on the clock..throttle..car starts

Customer Question

Hello,
I have an audi 2.5 tdi v6 avant 2002 with 120k on the clock and have been running the car for some time on bio diesel. On my way home yesterday I put my foot down it reved upto 3500 rpm and just stopped revving and died, there was no throttle at all. The car starts revs upto 1200 rpm on its own and then the revs drop in a second, this continues very lumpy and uneven up and down. I f i press the throttle nothing happens it wont rev at all. It will start with a bit of winding over and theres lots of smoke. I placed a new fuel filter on, filled the filter with pump diesel and put 30 litres of diesel from the petrol station in the tank. I have bled the injectors and there is fuel at all injectors. The car has run faultless up to date and not missed a beat. I cant drive it to any garage as it wont pull off as iot will not rev. Can you also tell me where I can plug a reader into to try and find if there are any fault codes. Heres hoping for a solution
Submitted: 2 years ago.
Category: Audi
Expert:  gomi_otaku replied 2 years ago.

It sounds like you have blown one of the hoses off- it is probably visibly in place, but if you pull on it will probably move in/out of position. This throws off the Mass Air Flow sensor (MAF), since it is then getting unmetered air. The smoke would be a symptom of that.

Check any hoses that don't have a clamp, but instead have a metal end with a "clip" that holds the other "male" end of the other hose in place.

Customer: replied 2 years ago.
I dont think that this is the problem as it did the same thing about a week ago and it cleared and has run great ever since. Its as if there is a lack of fuel and the trottle will not respond at all. I will give it a try and come back to you. My gut instrinct is the fuel pump but not sure how to check this out. I cant drive the car at all so would have to be towed in. I am trying to find a mobile fault diagnostics to pop out and plug into th ecar to try and identify any fault codes. I need more information, any sugestions?
Expert:  gomi_otaku replied 2 years ago.
The best diagnostic reader is the software from Ross-Tech called VAG-COM, it emulates the factory software for VW and Audi, and has full support, it's own discussion forum on Vortex- Uwe Ross decodes the factory software and builds this system himself, and will usually be the guy offering suggestions on the forums

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:

 
 
 
  • AudiDoc

    Independent Audi Shop Owner

    Satisfied Customers:

    1681
    I've been working on Audis since I was 18 and own an independent Audi repair and performance shop
< Last | Next >
  • http://ww2.justanswer.com/uploads/audidoc/2008-12-23_175252_headshot.jpg AudiDoc's Avatar

    AudiDoc

    Independent Audi Shop Owner

    Satisfied Customers:

    1681
    I've been working on Audis since I was 18 and own an independent Audi repair and performance shop
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Engineer

    Satisfied Customers:

    461
    Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
  • http://ww2.justanswer.com/uploads/MI/mikeamechanic/2013-4-2_175558_photo.64x64.JPG Mike Kelly's Avatar

    Mike Kelly

    Audi Mechanic

    Satisfied Customers:

    259
    17 years experience as a auto mechanic, foreign and domestic.5 years running my own repair business.
  • http://ww2.justanswer.com/uploads/FourRingsTech/2010-01-26_135603_GetAttachment.jpg Michael Miller's Avatar

    Michael Miller

    ASE Certified Technician

    Satisfied Customers:

    241
    ASE Master Technician. Audi certified, including R8 and TDI (clean diesel).
  • http://ww2.justanswer.com/uploads/NA/nabilc/2011-1-24_205715_jap500.64x64.jpg Billy's Avatar

    Billy

    Trainer/Master tech.

    Satisfied Customers:

    229
    Trainer 8+ years, Master tech. 10+ years, SAE member
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    204
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
  • http://ww2.justanswer.com/uploads/CA/caprio23/2011-12-13_155550_20111213105344.64x64.jpg Anthony's Avatar

    Anthony

    ASE Certified Technician

    Satisfied Customers:

    174
    ASE Master Automobile Technician with over 20 years exp. in this field.