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 Mike Your Own Question

Mike
Mike, UK Car Mechanic
Category: UK Car
Satisfied Customers: 38806
Experience:  Hi, I am a Car/ vehicle technician of 34 years. 29of -running my own repair/diagnostic business.
9261905
Type Your UK Car Question Here...
Mike is online now
A new question is answered every 9 seconds

P0314 error after replacing the EGR valve any ideas where to look next

Resolved Question:

P0314 error after replacing the EGR valve any ideas where to look next?
Submitted: 5 years ago.
Category: UK Car
Expert:  Mike replied 5 years ago.
Hello and Welcome to justanswer..

Fault code _0314 comes up as Single cylinder misfire.. That would add up - as unburnt fuel would produce black smoke that you report.

You need then to identify which cylinder is misfiring if any given one.

One thing you could try for now as a starting point is check the condition of the air filter and the passages for blockages / restrictions - kinks or collapsing pipes..

Check the air flow meter too for operation...try disconnecting the wiring to it - and re run it... it may run poor on idle etc - but of it cures the black smoke - its a faulty air mass meter.. replace with a genuine unit in that case..

After that would be moving on to checking the injectors. At this point - if not done already - you should have a proper diagnostic check done to include fuel pressure and go from there directed by the results of that ..

Chances are if nothing above cures it - the problem will be with the injectors - they would at that point need proper checking / testing...ideally at a local diesel specialist who will have the needed equipment to rest them for you...



I Sincerely XXXXX XXXXX have helped you - Please ask me if you need more help...

 


Kind Rgds, MIKE

 


  • >>>>>>>>>Please don't forget ....Please press the ACCEPT button if you are happy with my answer/advice given - as that's how I get paid for my time, knowledge and expertise given. Thank you.

 

Feedback and any Bonuses are always appreciated too. Thank you.

Mike, UK Car Mechanic
Category: UK Car
Satisfied Customers: 38806
Experience: Hi, I am a Car/ vehicle technician of 34 years. 29of -running my own repair/diagnostic business.
Mike and 4 other UK Car Specialists are ready to help you
Customer: replied 5 years ago.

Should I check the pipes just around the air filter or all rubber pipes?
Where should I look on the engine for the Air flow meter? I have a 2.2 TiD Saab by the way.

Also any idea on what I can roughly expect to pay for a air mass meter or injectors?

I bought a fault scanner from ebay so would I get any detailed info from a proper scanner?

Expert:  Mike replied 5 years ago.
Hello again - Thank you for your reply..

Yes , check the air filter - and follow the pipes right along ... check for any restrictions of any kind - I have even known rags get sucked up and get stuck in the middle of the pipes ! so you need to check them right through thoroughly..

Yes I know the engine you have - it will be engine code D223L..

Air mass meters are a little difficult to price as there are so many... I would do a search on the web for them - you can even get good prices for genuine ones ( new) on ebay as firms trade on there...

The scanner you have will be a basic fault code reader - which is good enough for fault code reading ...though some cheaper end models can give you iffy if not wrong results... The same goes for the injectors..although a local diesel specialist can have these reconditioned for you at a much reduced cost over new - New they are horribly expensive!

It would pay to have a proper diagnostic test done if you still are struggling after having worked through the above... Make sure if it comes to that - that the garage you use is using good - professional equipment....some do use ebay equipment and you don't want to be paying for that ! You need the equipment capable of doing the tests etc I have outlined - which can't be done on such machines..

I hope that helps you further..you will get to the bottom of it that way soon..

Best Rgds - MIKE ..





 


  • >>>>>>>>>Please don't forget ....Please press the ACCEPT button if you are happy with my answer/advice given - as that's how I get paid for my time, knowledge and expertise given. Thank you.

 

Feedback and any Bonuses are always appreciated too. Thank you.

Expert:  Mike replied 4 years ago.
Seen the feedback ! Very good- very pleased to have been able to help !! and thank you for the accept...

You know where I am if there is ever anything else ;))

Rgds... MIKE..

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:

 
 
 
  • 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
< Last | Next >
  • 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
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • Marty

    European Car Expert

    Satisfied Customers:

    349
    ASE & Bosch Certified Master Tech. Over 30 years experience.
< Last | Next >
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    European Car Expert

    Satisfied Customers:

    349
    ASE & Bosch Certified Master Tech. Over 30 years experience.
  • http://ww2.justanswer.com/uploads/IN/indytech/2013-8-8_102717_SantoDomingo146598x6402.64x64.jpg Greg's Avatar

    Greg

    Shop Owner

    Satisfied Customers:

    1040
    17 years Shop Owner /Technician. 27 years experience,
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    UK Car Mechanic

    Satisfied Customers:

    472
    12 years as a technician at a Ford and Jaguar dealer Ford and Jaguar factory certified
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Mechanical Engineer

    Satisfied Customers:

    4034
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/NA/nabilc/2011-1-24_205715_jap500.64x64.jpg Billy's Avatar

    Billy

    Trainer/Master tech.

    Satisfied Customers:

    1276
    Trainer - master tech., SAE member
  • http://ww2.justanswer.com/uploads/witt0018/2009-02-09_180738_trev2.jpg Trevor Witting's Avatar

    Trevor Witting

    UK Car Mechanic

    Satisfied Customers:

    815
    NVQ 3, Modern Apprenticeship, MOT Tester, 15+ years experience diagnostic technician
  • http://ww2.justanswer.com/uploads/RO/RobMechanic/068.64x64.JPG Rob's Avatar

    Rob

    UK Car Mechanic

    Satisfied Customers:

    811
    city and guilds level 1 2and 3. mot tester , 28 years experience set up training college in afghanistan