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Thread: RPM drop in civic (CNG)

  1. #1
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    janleva's Avatar
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    Default RPM drop in civic (CNG)

    My daily runner civic VTI is in a little bit of problem,wich is described below

    when ever i race the engine when it is in a GEAR the rpm drops.but when it is neutral wnd when i race it no rpm drop.

    its common that the rpm drops but in my case the rpm comes very low near the zero needle i have to keep the half clutch Pressed for keeping the engine running.
    drive with the AC at low speeds is near to impossible.

    i have to shift to the 1ST gear after every brake in case of a speed breaker otherwise the car stops after the rpm drops.PREVIOSLY i it did it in the 3rd or 2ND gear.

    FirstLY i thought that it might be the rpm problem i increased it to 1200 rpm
    but the problem prevailed.
    i suffer this problem on slow speed when the car gets above 60 no feel of power loss.with ac.

    the air filter is ok.


    There is no such problem when i run it on petrol.

    ANY kind of help will be appriciated.
    Past cant be brought back ..but future can be made even better than the Past..if one wants to.. ....

  2. #2
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    Default

    It requires proper tunning and see the air filter may be it got dust on it.
    .

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    Default

    i think it needs cng adjustment as this problem vanishes on petrol.

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    Default

    bhai spray CARB CLEANER into the throttle body, it used to happen to me but now after i regularly use CARB CLEANER its fine now.
    Wear Seat Belts. Your Family Loves You.

  5. #5
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    Default

    @MrNiceGuy

    THANKS

    did your car perform fine on petrol and bad on cng.
    i mean to say why no perfromance drop on petrol with dirty throttle body.
    Past cant be brought back ..but future can be made even better than the Past..if one wants to.. ....

  6. #6
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    Default

    its a normal thing that's all i can say

  7. #7
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    Default

    today i went to the mechanic
    and got the throttle body cleaned with spray worth 190
    NASA carb cleaner.
    and labour of 250.

    the problem has gone.
    pick has increased like petrol, very responsive now.
    no more stalls.

    firslty the mechanic told me that it can be a sensor problem but i insisted him to do the job.

    it has more effect on performance than a CNG tune up.
    Past cant be brought back ..but future can be made even better than the Past..if one wants to.. ....

  8. #8
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    Default

    caN aNY one plz explain it mORE !

    Wht should i say to the person

    iz this work done by any mechanic or the cng person only !!
    cuz i am also feeling that pick of my car is not gOOD !

  9. #9
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    Default

    tell him to clean the throttle body of your car with spray
    Past cant be brought back ..but future can be made even better than the Past..if one wants to.. ....

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