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Thread: Honda Civic Check Engine Light

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    Default Honda Civic Check Engine Light

    Salam Every one.

    I Have Honda Civic 1.8 2010 modle

    My car has clogged cat convertor due to which it is runnung like alto.

    So today i removed its cat convertor.

    After removing cat convertor the pick again comes to normall and car is running really smooth and fast

    But now Check Engine Light popped up after 20 seconds and is not going even after ecu rest. (Battery terminals wala rest)

    I have removed my corolla 1.6 2012 cat con also swift 2010

    But no such problem occurs but it is occurin g in my civic.

    Does any of you remove the cat of rwborn and this problem ?

    Please guid me


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    Salam Sir

    Can any one please guide me .

    Does this problem occurs in all civics after cat removal.

    Or there might be some damage to sensors.


    What is the procedure to turn it off

    It nerver came in any of our cars even gli 1.6 2012 whin is now 96000km driven and i removed its cat at 70000km

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    Default

    thats because of abnormal numbers from primary and secondary oxygen sensor. . dont remove the cat you can either get it cleaned for install kabli or after market.

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    Default

    What to do if i dont want to install cat convertor

    Why this dont occur in corolla and swift

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    Default

    Civic is Euro IV compliant, while Corolla and Swift are not.

    I could be wrong, but maybe Corolla and Swift don't have a downstream O2 sensor that doesn't rely on a working catalytic converter. The downstream O2 sensor in your Civic can not detect a working catalytic converter, so it just threw a CEL.
    _ 22 km/l from '03 VTi automatic, with plenty of room for improvement
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    Default

    The have downstream sensor sir

    How ever acoording to my research there should be diff bw readings of two so that no CEL lit up.

    But there is a large distance bw two sensors of corolla and swift.

    But i noticed that civics sensors are placed only at distance of 1 or half foot.

    So both sensors are giving same reading to ecu

    So ecu is detecting absent cat convertor

    How ever my car idel perfectly
    Pick increased thrice
    And soud decrease twice

    But i want to know if i drive the car as such does it causes any engine or ecu damage

    Because i am deiving my gli 1.6 for 40000km without ecu and it is now 940000km driven and engine rum more smoothly silently

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    No it doesnt happen in all cases of cat con removal for civic 8th gen maybe during removal someone likely damaged one of the two 02 sensors either upstream or downstream..First of all u shuld hook up a scan tool and see what code ur getting than we can move forwards towards a solution for u!
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    Thanks sir i will get it scanned

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    Sir i want to know .

    Since my car is working perfectly not even aslight missing on acceleration.

    Also no fluctuations in rpm on idling

    And i also knew that the check engine light is duo to cat removal .or sensor damage

    So can i take my car for highway drive from Gujrat to Lahore.

    To get it scaaned

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    Quote Originally Posted by KhurrumIftikhar1 View Post
    Sir i want to know .

    Since my car is working perfectly not even aslight missing on acceleration.

    Also no fluctuations in rpm on idling

    And i also knew that the check engine light is duo to cat removal .or sensor damage

    So can i take my car for highway drive from Gujrat to Lahore.

    To get it scaaned
    Yes u can absolutely take ur car to get it scanned although u might face really bad fuel mileage but it wont hurt the engine at all..So yes u can take it easily..Im quite sure someone took a 'panga' with ur 02 sensors..otherwise i know of quite a lot of ppl running their civic 8th gens without a check engine light and also without a catalytic converter!
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    Default

    Usually ppl quote the engine sound to INCREASE whereas ur saying noise decreased twice?! can u explain this a bit further
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    Quote Originally Posted by ziyad.ahmad.391 View Post
    Usually ppl quote the engine sound to INCREASE whereas ur saying noise decreased twice?! can u explain this a bit further
    Problem Turns out to be damaged primary O2 sensor.

    He damaged it while opening with in approprate too.

    New one from Honda pit shop Gujrat was of 25000rs.

    But i got Kabuli one at 11000rs.

    What will you say about Kabuli.

    Is the price right.

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    Quote Originally Posted by ziyad.ahmad.391 View Post
    Usually ppl quote the engine sound to INCREASE whereas ur saying noise decreased twice?! can u explain this a bit further
    Noise is less than before below 3500 rpm

    But more than before above 3500 rpm.

    But when you are driving sober you dont need to take it above 3500 rpm.

    And when you are driving roughly you definately love that honda civic sound

    However now i can put my Hand on my car bonnet after long drive .

    But before removing cat i can not even stand in front of car mire than 1 min.

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    Default

    Quote Originally Posted by ZainMahdi View Post
    Civic is Euro IV compliant, while Corolla and Swift are not.

    I could be wrong, but maybe Corolla and Swift don't have a downstream O2 sensor that doesn't rely on a working catalytic converter. The downstream O2 sensor in your Civic can not detect a working catalytic converter, so it just threw a CEL.
    Suzuki swift have past o2 sensor

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    Quote Originally Posted by KhurrumIftikhar1 View Post
    Problem Turns out to be damaged primary O2 sensor.

    He damaged it while opening with in approprate too.

    New one from Honda pit shop Gujrat was of 25000rs.

    But i got Kabuli one at 11000rs.

    What will you say about Kabuli.

    Is the price right.
    i told u before that the person wuld have damaged the 02 sensor while removing it!..Before opting for kabuli one and spending money on it i wuld advise u to give ur old 02 sensor a shot..connect it again and see if it works..sometimes the clip doesnt become snug in the connector..If it still doesnt work u can buy a kabuli one but remember a kabuli one might not work properly because 02 sensors are replacement items just like spark plugs...but u can give it a try..if it still doesnt work i wuld advise u to get a new one from honda pitstop!
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    Quote Originally Posted by ziyad.ahmad.391 View Post
    i told u before that the person wuld have damaged the 02 sensor while removing it!..Before opting for kabuli one and spending money on it i wuld advise u to give ur old 02 sensor a shot..connect it again and see if it works..sometimes the clip doesnt become snug in the connector..If it still doesnt work u can buy a kabuli one but remember a kabuli one might not work properly because 02 sensors are replacement items just like spark plugs...but u can give it a try..if it still doesnt work i wuld advise u to get a new one from honda pitstop!
    Thanks

    I already installed a Kabuli one and is working fine.

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    Quote Originally Posted by KhurrumIftikhar1 View Post
    Thanks

    I already installed a Kabuli one and is working fine.
    Bro where did u get the kabuli one? and did that check engine light go away after u put it on?
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    Quote Originally Posted by ziyad.ahmad.391 View Post
    Bro where did u get the kabuli one? and did that check engine light go away after u put it on?
    I got it from Gujrat.

    Yes by the Grace of Allah.

    Check Engine light went away.

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    Quote Originally Posted by KhurrumIftikhar1 View Post
    I got it from Gujrat.

    Yes by the Grace of Allah.

    Check Engine light went away.
    Congrats and enjoy ur cat free restriction free car..do tell about any changes apart from sound u noticed..and also did the fuel consumption increase or decrease..
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    Quote Originally Posted by ziyad.ahmad.391 View Post
    Congrats and enjoy ur cat free restriction free car..do tell about any changes apart from sound u noticed..and also did the fuel consumption increase or decrease..
    Thanks yes i will.

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