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Thread: Black carbon deposits in exhaust tail pipe of Honda civic EXI 2006

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    Default Black carbon deposits in exhaust tail pipe of Honda civic EXI 2006

    Can anyone help me regarding very high carbon deposits in exhaust tailpipe of my Honda civic exi 2006. My car has completed above 100000 Km. I got tuned my car engine twice from a good mechanic who changed all four spark plugs with new ones and also adjusted valves clearances and throttle body cleaned but the problem is still not being solved. Some people say that if car mostly drives in city then high carbon deposits/soot in exhaust tail pipe is normal as the engine does not reach full operating temperature and thus not allowing the carbon to burn out completely. But I am not satisfied as I have seen other same cars but there tail pipe are almost clean. My spark plugs are also found partially covered with black carbon but not oily. Do I need to check its sensors e.g; oxygen sensor, MAP sensor etc. This problem is also causing my engine oil getting black very soon. Please advice me what are the main causes of this problem and how can I solve it. If it is due to rich air-fuel mixture then what are the reasons and remedies. Engr. Khawaja Jodat. Wapda town Lahore. 03008457344.

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    Yes got the throttle body serviced twice from Abid car tuning center near LDA flats main Faisal town Lahore and noticed a big difference as the engine became very smooth and also missing problem solved. But even after this the high carbon deposits problem in exhaust tail pipe not rectified.

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    Here I again agree with you that the cause of high carbon deposits in exhaust tail pipe of my Honda Civic prosmatic EXI 2006 is may be due to worn out ring pistons or valve seats. I was also thinking to check the compression of each cylinder from some workshop. It consumes engine oil but not very high. I am using Havoline formula oil 10w/30.

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    Here I again agree with you that the cause of high carbon deposits in exhaust tail pipe of my Honda Civic prosmatic EXI 2006 is may be due to worn out ring pistons or valve seats. I was also thinking to check the compression of each cylinder from some workshop. It consumes engine oil but not very high. I am using Havoline formula oil 10w/30. Somebody suggest me to get my car checked from Magic Motors in Model town Lahore and that is a good idea as once I used to take my suzuki mehran there for tuning. Thanks to all buddies for their kind help and suggestions. Khawaja Jodat Chemical Engr. Wapda town Lahore.

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    btw the fuel pump, filter, level sensor, regulator are all in the tank and are found under the rear seat.

    Do mention the diagnosis when the problem rectifies.

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    Quote Originally Posted by metalhead View Post
    btw the fuel pump, filter, level sensor, regulator are all in the tank and are found under the rear seat.

    Do mention the diagnosis when the problem rectifies.
    AOA, I am facing same issue. How did u get it fixed

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    Quote Originally Posted by mb_junaid View Post
    AOA, I am facing same issue. How did u get it fixed
    You mean the carbon deposit in the tail pipe?

    Actually i asked for the solution of the poster's problem. You should ask him.

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    Yea carbon in tail pipe

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    Also facing same issue

    Sent from my HTC Wildfire S A510e using PW Forums mobile app

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    Quote Originally Posted by curiousdevil View Post
    Also facing same issue

    Sent from my HTC Wildfire S A510e using PW Forums mobile app
    I am planning a long trip.. PPl suggest long trip can return its older brownish rusted look

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    drive at 4.5 k rpm for 5 minutes in the last 30 minutes of your trip, it will be painful, but on my car, the exhaust colour changed, i did this in city
    haters gonna hate, potatoes gonna potate

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    radiator direct hoawa hoga thts why
    "The world ain't all sunshine and rainbows. It's a very ruff, mean place, and no matter how tuff you think you are, it will always bring you to your knees and keep you there permanently if you let it.You or nobody ain't never gonna hit as hard as life, but it ain't about how hard you hit, it's about how hard you can get hit and keep moving forward, how much you can take and keep moving forward. If you know what you're worth, go out and get what you're worth, but you gotta be willing to take the hit."
    - Sylvester Stallone

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