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Thread: City IDSI, 50k kms,giving bad average, need help

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    Default City IDSI, 50k kms,giving bad average, need help

    hi guys...

    i hav on my hands a honda city idsi, 50k used,
    regularly maintained by honda in karachi...

    No CNG installed.. stock on petrol..
    the car is running fine...
    new spark plugs at 45k,
    air filter , oil n oil filters hav alwasys been in check...
    the pick is fine..power is fine.. as it should be..

    the problem which i am facing is BAD FUEL CONSUMPTION..
    the car is doing like 9 km per liter with A/C

    what needs to be serviced which is causing bad fuel consumption... it should be doing 12 to 14 even with A/c..

    anybody who has maintained a honda city idsi. please guide me..

    is the throttle body responsible for this and needs a service.. i need help on this one pls..

    there is another slight problem..when i start the car.. the rpm goes to 1.6 thousand.. then it dips to 700 rpm .. then it comes back to around 1000 rpm..everytime...

    ?? what do i need to get serviced...
    Do the environment a favour, Use less airconditioning .. and please walk to the shop to get a pack of cigarretes..its only a 3 min walk..

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    Tow it around with your peugeot. it would be peanuts for peugeot and free ride for city
    Keep a cool head and wear seatbelts!

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    Go to a trusted reliable filling station. Check tyre pressure. If your foot is hard on pedal, like on your diesel car, the consumption might be greater.

    RPMs are usually high on cold start and then sit back to normal range after a couple of minutes.
    Be polite on the road. Always give way to others, particularly ambulances and pedestrians.

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    @ spectra lol..

    @ others..

    please.. i need technical info.. not things like tyre pressure.. and cold startups...and my foot as if its on diesel car.....

    the rpm problem is there at every warm startup..

    it goes to 1.6 then dips back to 700 instantaneously.. then back to 1000 in a second
    Do the environment a favour, Use less airconditioning .. and please walk to the shop to get a pack of cigarretes..its only a 3 min walk..

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    how about using.. liquimoly ..fuel injector/nozzle cleaner... would that help the throttle body..
    would that clean the fuel injection.??
    Do the environment a favour, Use less airconditioning .. and please walk to the shop to get a pack of cigarretes..its only a 3 min walk..

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    just a few days back...i saw a similar city as ures at Honda fort in lahore and it had the same problem with the rpm...the honda ppl said that there was nothing wrong with it...and the owner had brought another city which was perfectly fine...i think the honda ppl were not be able to figure out what was wrong....i got my throttle body cleaned n then adjusted via a computer....i have noticed no such significant change in consumption...altough the pick is quite better now...ure situation i beleive is a bit complex..but my advice would be dont let the honda ppl fiddle with the fuel system cuz they messed tht up on my civic99 years back...fuel filter could be a possible cause...get the tuning done as well...and last but not the least...try a different gas station....

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    @ oror

    thanks man.. you are the closest anybody has come to solving my problem... it works or not... i will let ppl know in this thread... i think i should get the fuel filter inspected..and replaced if needed... throttle body.. well its worth giving it a cleanup after 50 thousand kilometers..

    i am not too bothered about the rpm dip at the moment..if it starts giving better fuel consumption.. i think your fuel consuption did not improve bcoz your car would hav been giving you a better average even before the throttle body cleaning...

    i am searching for litereature on the idsi engine everyday... and i am trying to come up with a solution.. as this would be the problem many idsi would be facing..

    anything else you hav serviced..? and what consumption your car is doing...

    how many kilometers on the clock?
    Do the environment a favour, Use less airconditioning .. and please walk to the shop to get a pack of cigarretes..its only a 3 min walk..

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    Get the throtle body serviced (your iddling problem will be solved)
    Get the injectors serviced (they wash it with petrol with pressure)
    Hook it up with the honda software and check the air/fuel ratio (computerised)
    Air cleaner use the genuine one (thailand one)

    good luck
    Life is short and very unpredictable just like a Quarter mile .....

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    @hash4u

    thanks for the help man..
    what about the fuel filter..?? isnt it an item of interest here..?
    Do the environment a favour, Use less airconditioning .. and please walk to the shop to get a pack of cigarretes..its only a 3 min walk..

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    U never changed the fuel filter in 50k mileage :|
    Dude through it out of the car right away.
    choked petrol filters usually cause missing problem.
    nothing to do with the problems u have described
    Life is short and very unpredictable just like a Quarter mile .....

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    You can get the "expert advise" at your nearest Honda 3S dealer of Honda Pit Shops. BTW these are the pangs of Honda, quite normal.

    Edit: That is what I wrote, when I saw your response to @others. Now I keep only the line below.

    BTW these are the pangs of Hondas, quite normal.
    Be polite on the road. Always give way to others, particularly ambulances and pedestrians.

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    @minex
    Have you got your exhaust checked. It might be chocked. This could be one reason I could think of since you have tried many things and as someone pointed that Honda people could not do much abuot the problem.

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    @hash4u

    i m not sure about the fuel filter..as this car was being maintained in karachi by my brother.. i will hav to go through the service history.. thats one of the things i need to check...


    @ autophile

    you are quite right.. but the problem is due to the fact that even honda mechanics dont know the car...

    i went to aabpara pitstop.. what they did was checked the plugs.. and told me to change them when they were just 3k used.. and they just cleaned the air filter.. nuthign else... pitstops are just good for oil changes..and other minor things..

    i was interested in getting the city vtec later this year... now i will hav to go through its literature and maintainance issues in much more detail before i get one for me..

    @bkahive1

    exaust chocked.. i think its fine.. i will hav that checked as well.. the car did its 50k in 2 years in karachi... is there any part which is prone to rust...which might be causing the problem..?.. just a blind thought.. i doubt it..

    i m going to pay a visit to honda motors in I-10 very soon..i am just doing my homework before i go...as otherwise just paying them a visit will not be of much use.. but might end up heavy on my pocket
    Do the environment a favour, Use less airconditioning .. and please walk to the shop to get a pack of cigarretes..its only a 3 min walk..

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    get all sensors checked on the diagonoser esp air fuel mixture. looks like u r running a rich mix, exhaust must be excessively choked and yes it can be choked as well.

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    Minex, did you go to Honda I-10? A friend who has a Vti visiting them regularly since 2002 and much satisfied with the exertise level of mechanics there. Have not checked recently what's the state of affairs there.
    Be polite on the road. Always give way to others, particularly ambulances and pedestrians.

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    I think your problem is most probably the Coolant Temperature Sensor, that's why whenever you start the engine, it's RPM rises still when the engine is hot....Is there any black smoke seen from the exhaust?....Also do check whether there is any problem in the pair of plugs, there might be possibility that only one spark plug is working out of the pair in any single/multiple cylinders....
    Adnan's
    Daewoo Cielo GLX 1.6L E-TECII DOHC 110PS/5000 150N.m./3400

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    a faulty por ructy water temperature sensor willn cause rich mixture

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    @ wheels4u

    i ll get the sensors checked..

    @autophile
    I m goign to honda I-10 in a day or 2...

    @ testdriver
    the rpm problem is there on every warm startup as well...and its just a raise then a dip then normal.. all that takes a second or two...
    there is no black smoke from the exaust.. that would hav told me easily that its a rick mixture..


    so far here is the list of possible reasons

    1. throttle Body service needed
    2. one or more secondary plugs not firing
    3. sensors

    4. Exaust.
    5. fuel filter changed or not..

    first 3 seem to be interesting...

    Hav the Honda ppl got a good diagnostic machine and its operator in I-10
    Do the environment a favour, Use less airconditioning .. and please walk to the shop to get a pack of cigarretes..its only a 3 min walk..

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    minex

    few of my trusted + knowledgable friends have told me that city isdi does 10km/lit if u just drive it in city with a/c

    these are slightly agressive drivers u can say they want to get to the fourth / fifth gear quickly

    both have them used other 1300 cc cars and expect the the same pick out of it, like old city / baleno

    they only get better consumption when driving on motorwayi.e. 12-13km/lit

    city i think is very sensitive to driving style, i u want to get some performance out of the engine the consumption sucks

    i think u r slightly off the normal, it would in any case u would improve upto 11km/l in city

    i suggect a tunning plus may be check the vaccum pipes the starting idling issue can be linked to it

    injector cleaning may be required but preferably use a feul additive for it


    i m kind of facing a similar problem in my daewoo but it is far worse somhow its consumption has gone down from 9.5 to 6-7km/l i am searching for the issue, i hope to learn somthing frm u aswell

    keep us posted if u find a solution / improvment
    nothin good in life is for free

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    @Minex
    Good input we are getting here.
    So what are the plans, i am changing FIAT's timing belt mtself on Saturday, so it will be one heck of a day. do let me know if something comes up.
    Keep a cool head and wear seatbelts!

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