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Thread: Corolla 74-Pick Problem on CNG

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    zac
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    Default Corolla 74-Pick Problem on CNG

    I am a very proud owner of a Corolla 74 (will post the pics very soon). Purchased by my dad 33 years ago, overhauled just once in 1984, this is a rare piece of japanese craftmanship. Its 100% stock except a standard Lendi Renzo CNG kit. Since last one month I have noticed that the car has lost pick on CNG and the other cars keep overtaking me on GT road which is frustrating. May be my engine has gone weak and its losing some of compression, or some other reason? Is there any device available in market which can improve the pick of my car? Are there any latest models of CNG which can improve the pick of the car? Should I change the plugs or jets etc? will it effect my CNG consumption? Any good workshop in Rawalpindi/Islamabad or Lahore where I can get the car checked? Currently I am in Jhelum can any one nearby help me with valuable advice on the subject?
    Thanks, a brother in distress
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  2. #41
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    Default

    You can find rear view mirrors from peshawar or mardan. Cng problems can be solved by consulting a good mechanic.
    Keep a cool head and wear seatbelts!

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    Default

    Can any one advise any latest ventury, ot emulator rtc which can solve my pick problem? also I have noticed dat the CNG consumption has shot up many fold, any help?
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  4. #43
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    Default

    any CNG expert?
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    Default

    i think lambda control may solve the problem,
    @saqib bahi kai kahty hain iss baray mein...
    WhEn ThInGs Go WrOnG, DoN'T Go WiTh ThEm.

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    Default

    Lambda cannot be installed in non efi car
    Keep a cool head and wear seatbelts!

  7. #46
    zac
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    Default

    can we play around with ventury adjustments a little bit to get the right air-fuel mixture?
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  8. #47
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    Default

    So we have got recommendations of following engines so far:
    a. 4 efe 1.3 l efi engine
    b. 1.6 l engine
    c. 4age16V, engine to be mounted vertically instead of horizontally

    Any brother can give advantages and disadvantages of these engines? I am not much interested in racing engines, I want fuel economy and reliability so please advise me accordingply please.
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  9. #48
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    Default

    any engine expert?
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  10. #49
    zac
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    Default

    So any engine expert please?
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  11. #50
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    Default

    So we have got recommendations of following engines so far:
    a. 4 efe 1.3 l efi engine
    b. 1.6 l engine
    c. 4age16V, engine to be mounted vertically instead of horizontally

    Any brother can give advantages and disadvantages of these engines? I am not much interested in racing engines, I want fuel economy and reliability so please advise me accordingply please.
    -

  12. #51
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    Default

    Dear Zac

    i too have a corolla 74 standard edition purchased 0 meter in 74 by my grand dad. It is still in original colour and has it original 3k-h engine running on landi renzo cng kit. i dont face any pick problem while on cng infact i feel very little difference when i am on petrol or cng.i would suggest dont change the engine as there is no substitute for an original engine. clean ur cng kit and cylinder and have it tuned it by some good cng expert. i am sure performance of the car will improve

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    Default

    Shahdad nice to hear it, you have some pics of the car? and tell me from where you get it tuned?
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  14. #53
    zac
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    have u made any modofocations shahdad?
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    Default

    I want fuel economy and reliability so please advise me accordingply please.
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  16. #55
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    I want fuel economy and reliability so please advise me accordingply please.
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