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 Engineering Pro Your Own Question

Engineering Pro
Engineering Pro, Development Engineer
Category: Car
Satisfied Customers: 1382
Experience:  BEng. M-SAE, 15 years Vehicle Calibration
Type Your Car Question Here...
Engineering Pro is online now
A new question is answered every 9 seconds

Dpf on a diesel auto pajero be hollowed out..limp mode..dealers

Customer Question

Can dpf on a diesel auto pajero be 'hollowed out' - for want of a better description to avoid it causing limp mode as a result of lots of slow speed remote operation. As there are no dealers even if you could get back to them in remote Aust.
Submitted: 2 years ago.
Category: Car
Expert:  Mastertech1 replied 2 years ago.
I WOULD LIKE TO THANK YOU FOR CHOOSING JUST ANSWER, AND FOR ALLOWING ME THE OPPORTUNITY TO ASSIST YOU WITH YOUR AUTOMOTIVE CONCERNS.The DPF system is a program that is incorpated into the engine computer,The system needs to perform a complete regenative on the system at times when the sensor detects that there is excess soot in the system, No, you can not hollow out the unit, The best thing for you to do is at times take a longer drive and run it a bit harder then normal and let the system perform its clean-out procedure, Thanks, Please let me know if I can be of any other assistance to you with this isssue.
Customer: replied 2 years ago.


Sorry there was a computor glich, the screen disappeared. The answer, in case my request for further help was lost, was the book answer does not help. In the conditions
a lomg hard run is impossible - especially where the coditions have already caused 'limp'mode.
Some Nissans with dpf have modified the dpf whilst keeping it in the computor loop
and these vehicles have not had any repercussions over some years modified.
This diesel auto with dpf was only for a short time and was troublesome.
A number of upgrades and each owner offered $1.200 on cards by Mitsubishi in,
I guess, recognition of their limp home experiences Doesn't help much in certaim driving conditions. Is the answer no abswer!
.
Expert:  Mastertech1 replied 2 years ago.
Ok, may-be Im not reading you correctly, But have you removed the DPF and tried cleaning it out with hot water and a good high grade soap (use a pressure washer) and then install it and then perform the drive regen.
Customer: replied 2 years ago.

Sorry your answer does not assist. My question put another way is that similar dpf fitted Nissans have 'hollowed out' the dpf with no operational difficulties over 2yrs use. Avoiding potential 'limp mode' from long low speed revs operations well away from dealers or the ability to have a run at speed & higher revs.
Customer: replied 2 years ago.

Sorry your answer does not assist. My question put another way is that similar dpf fitted Nissans have 'hollowed out' the dpf with no operational difficulties over 2yrs use. Avoiding potential 'limp mode' from long low speed revs operations well away from dealers or the ability to have a run at speed & higher revs.


Expert:  Engineering Pro replied 2 years ago.

Hello

The short answer is that it has been done to NS models, but not necessarily the NT.

It is being done with a replacement pipe in place of the DPF assembly and an associated aftermarket ECU controller.

The modifications which I know about have been done by Chipit.com.au

They should be fairly robust in terms of reliability etc but you are moving away from how the vehicle was intended to perform so there is always an element of risk associated with such modifications, however the pajeroclub australian forum would be the place to ask whether the success rate is high enough for you to want to do the modification...

 

All the best

Jon

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
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
< Last | Next >
  • 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:

    846
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1596
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1311
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Tech

    Satisfied Customers:

    2367
    ASE Master Tech advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1906
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    942
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
  • http://ww2.justanswer.com/uploads/ST/Steve7654/2012-6-5_215929_japic800x660.64x64.jpg Steve's Avatar

    Steve

    Auto Service Technician

    Satisfied Customers:

    1980
    25+ yrs experience as a professional working technician; ASE L1 master technician