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Dan, ASE Certified Technician
Category: Audi
Satisfied Customers: 1085
Experience:  Dealer Auto Technician
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I have a 2006 Audi Quattro all cylinders are misfiring,

Customer Question

I have a 2006 Audi Quattro all cylinders are misfiring
JA: How many miles are on the car? Is it a steady misfire? Or random?
Customer: Hundred twenty
JA: Are you fixing your Quattro yourself? What have you tried so far?
Customer: Yes I replaced ignition coils and spark plugs
JA: Anything else you want the mechanic to know before I connect you?
Customer: Yes had the code red and said that I have an O2 sensor front and back
Submitted: 29 days ago.
Category: Audi
Expert:  Dan replied 29 days ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.

Expert:  Dan replied 29 days ago.

What are the code numbers? A vacuum leak can cause a misfire on all cylinders. You need a scan tool that can read live data to see what you have for fuel trims.

You can spray the intake and vacuum hoses with carb cleaner while the engine is at idle, listen for the rpm to change indicating a vacuum leak.

Expert:  Dan replied 29 days ago.

Please reply to this if you need more help and we can continue this conversation. This does not have to be my only answer. If you are satisfied with my service, please rate at the top of the screen. Rating does not close out your question. Remember, sometimes it is difficult to completely diagnose your vehicle without being there, but I will try to give you the best answer I can. If I am not giving you 5 star service, please let me know what I missed.



Customer: replied 28 days ago.
I will try that and see if not I will give you a call
Expert:  Dan replied 28 days ago.

Ok sounds good.

Expert:  Dan replied 23 days ago.

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.


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