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 Clayso Your Own Question

Clayso
Clayso, ASE Certified Technician
Category: VW
Satisfied Customers: 422
Experience:  30 years experience full service, all makes and models. I fix cars.
9358908
Type Your VW Question Here...
Clayso is online now
A new question is answered every 9 seconds

I have a 1999 Passat with a 1.8T. I have a misfire on #2 cyl.

Customer Question

I have a 1999 Passat with a 1.8T. I have a misfire on #2 cyl. I began with swaping the coil pack around and it didn't make a diff. Then I tested the supply power to the coil, i have 3 wires 2 the coil, one pos. one neg. and theres nothing on the third. I went to the power stage module on the air box tested continuity from pin 3 to the other 4 pins and they all have the same readings. Is there another module that controls spark to the coil or is there only the ecm and the power stage mod.
Submitted: 5 years ago.
Category: VW
Expert:  Mr.Fix It replied 5 years ago.

is there a distributer on this engie or is it distributless also whne did this start what were the conditions
just for knowlenge the third wire foing to the coil should be for a tach

Customer: replied 5 years ago.
It started all at once. It doesnt matter if its cold or hot. I origanly thought it was the valve cover gasket was the prob. because the spark plug hole was full of oil.
Expert:  Mr.Fix It replied 5 years ago.
does it have a distributer or is it a coil pack also what is the condition of the plug
Customer: replied 5 years ago.

im sorry. no it doesnt have a dist. it has individ. coil packs

 

Expert:  Mr.Fix It replied 5 years ago.

i guess what i should ask are you getting any spark at all also have you tried a new wire or a differnt one

i see you already tried a differnt coil so its probley not the coil also have you visually checked for spark along with checking compression

 

i am not to familular with your car but i will try and help if i cant ill opt out and let aneather expert assist you

Expert:  Mr.Fix It replied 5 years ago.

basically what im asking is everything that you have tried it could even be somthng so simle as a wire bad to as complex as cam sensor and inorder to give an accurate answer i need as much detail as possible

 

Customer: replied 5 years ago.
This car doesnt have wires it has coil packs on each cylinder that insert ito the center of the valve cover. i have good compression on all cylinders. If it was a cmp sensor woudnt that give me a random misfire or only on one cylinder
Customer: replied 5 years ago.
I just tried a cam sensor but im still having the same prob.
Expert:  Mr.Fix It replied 5 years ago.
it could do either here let me check something and ill get back to you
Expert:  Mr.Fix It replied 5 years ago.

well like i said im not to familure with this setup sorry i dont belive i can help you so i will opt out and request aneather expert all i can really offer is check all sensors to do with timing and ensure that the plugs are clean and free of corosion im sure that there is a controller somewere for the coils but im not sure so thank you and good luck

one thing i would like to know are you getting any spark at all on it

Customer: replied 5 years ago.
Thank you for your time any way. No im not getting any spark on that cylinder.
Expert:  Clayso replied 5 years ago.

Hi there. I see your problem and understand this is what you need.

 

Repair: Replace the power stage (ignition output module), part
number for this car was 4D0-905-351. In stock at the local
dealer. Price around $280.

Customer: replied 5 years ago.
I did a resistance test on the power stage and im getting the same amount of resistance on pin 1,4, & 5 . Is that the correct procedure for testing this unit?
Expert:  Clayso replied 5 years ago.
Hi there. The resistance is not the problem but the power to the affected coil is the culprit, it is like number 2 does want to play any more, I have seen this on numbers 1,2 and 4b but never number 3. Later on in the year VW changed and got away from the power stage (ignition output module),. I figure they saw the errors in their ways.
Clayso, ASE Certified Technician
Category: VW
Satisfied Customers: 422
Experience: 30 years experience full service, all makes and models. I fix cars.
Clayso and 5 other VW Specialists are ready to help you
Customer: replied 5 years ago.
ok thanks I'll put one on
Expert:  Clayso replied 5 years ago.
Hi there. Let me know. You are my customer, and I will not stop until your vehicle is fixed.

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:

 
 
 
  • vwnewton

    VW Owner,ASE Master and L1 Advanced

    Satisfied Customers:

    307
    25 years of VW obsession turned into a job, last 15 years as a VW Tech.
< Last | Next >
  • http://ww2.justanswer.com/uploads/vwnewton/2008-12-27_221405_JA_avatar.jpg vwnewton's Avatar

    vwnewton

    VW Owner,ASE Master and L1 Advanced

    Satisfied Customers:

    307
    25 years of VW obsession turned into a job, last 15 years as a VW Tech.
  • http://ww2.justanswer.com/uploads/audidoc/2008-12-23_175252_headshot.jpg VWDoc's Avatar

    VWDoc

    Independent VW Shop owner

    Satisfied Customers:

    1713
    20 years of experience working with VW's. Independent European shop owner and technician.
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Engineer

    Satisfied Customers:

    506
    Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
  • http://ww2.justanswer.com/uploads/CA/carbezerk/2011-3-13_103612_SAM0048.64x64.JPG Martin's Avatar

    Martin

    auto electrical

    Satisfied Customers:

    475
    South African Trade Diploma in Auto Electrical
  • http://ww2.justanswer.com/uploads/terocoga/2009-08-17_050126_015.JPG RobJackson's Avatar

    RobJackson

    VW Mechanic

    Satisfied Customers:

    416
    Started working in VW/Audi dealership in 1999. 2009 Registered and Certified VW Tech. ASE Master
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    397
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    VW Mechanic

    Satisfied Customers:

    391
    Shop owner and experienced in most brands.