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Thread: Any Honda Guru?

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    Default Any Honda Guru?

    I have a Honda City A/T 2009, petrol. My car is giving me a 8-9km/ltr mileage. It used to give me a consistent 10-11km/ltr till 7months before.

    3months before: I had changed all fuilds and filters from Honda. And Honda also checked everything and couldn't figure out the problem maybe and gave my car back and said everything was okay.

    Please let me know what should I do? @Xulfiqar


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    Quote Originally Posted by rustam54 View Post
    These are general guidelines. I'll mark the ones that you need to consider. The rest are as much important but the likelihood is less in your vehilce.

    01) Dirty / clogged air filter. (Highly Plausible)
    02) Incorrect ignition timing. (Unless you ever have had CNG with an emulator, not possible)
    03) Under-inflated tyres (higher rolling resistance). (Highly Plausible. Check Once a Week)
    04) Binding brakes. (May or may not be)
    05) Leaking fuel injectors. (Plausible, but the system would have corrected itself partially with some negative trim. )
    06) Blowing exhaust system. (Plausible, but need compression test. At 60k with sane driving and maintenance, unlikely)
    07) Faulty MAF (mass air flow meter). (ECM CEL expected )
    08) Faulty CTS (coolant temperature sensor). (Not plausible)
    08) Faulty o2 sensor (Lambda). (Not plausible. This car has 2 of those. Although both are for different purposes but one can tell if other one is okay)
    09) Thermostat stuck open, or removed by some dodgy mechanic. Over cooled engine. (Not plausible)
    10) Split / perished vacuum hoses, engine drawing in unmetered air (Not plausible, Expect a fluctuating idle and probably a CEL here)
    3S Honda guys suggested me to leave the car for Throttle Body cleansing and Fuel injectors cleaning. Does it make aense?

  3. #22
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    Quote Originally Posted by aminurrehman View Post
    3S Honda guys suggested me to leave the car for Throttle Body cleansing and Fuel injectors cleaning. Does it make aense?
    Yes it makes a lot of sense

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    Quote Originally Posted by aminurrehman View Post
    3S Honda guys suggested me to leave the car for Throttle Body cleansing and Fuel injectors cleaning. Does it make aense?
    Quote Originally Posted by aminurrehman View Post
    ..........And Honda also checked everything and couldn't figure out the problem maybe and gave my car back and said everything was okay

    If honda has checked everything was okay (assuming you are talking about when you went for fluid replacements), how come the TB needs cleaning now just after 3 months. Its a 20K kilometer service job. I doubt your car drove 20k in 3 months.


    TB cleaning was essential in older EFI TB's where the IACV gets clogged. The DBW's adjust themselves on the go. And what Honda dont want to disclose is that even if the ECU cant accomodate that gunk on the throttle plate, its a 10 min job to reset TB calibration and allow it to re-learn.

    But if they tell that to the customer, who would come and pay 2500 each time for TB cleaning??

    Makes sense right


    P.S. Regarding injector cleaning, yes it may work great. But I have been to a popular Injector cleaning service in Lahore multiple times for the job, they use extremely diluted chemicals (not the specified concentration) which defy the purpose of ultrasonic cleaning.

    Also, no one shows you the before and after spray patterns. They just show you "AFTER" pattern and you cant judge how wrong your spray patterns were before and whether the job actually did something???
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    Quote Originally Posted by aminurrehman View Post
    3S Honda guys suggested me to leave the car for Throttle Body cleansing and Fuel injectors cleaning. Does it make aense?
    Can you ask them how they will clean the injectors?
    Engineer + Car's Passion = Enthusiastic Personality.

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    Prob solved. Faulty plugs. Got them cleaned.

    If I need to change the plugs: which plugs are the best for City 2009 A/T

  7. 23-11-2014, 10:17 PM

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