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Thread: city 2001 pickup issue and engine stopping problem

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    Default city 2001 pickup issue and engine stopping problem

    Assalam o alaikum guyz,

    just having some problems with my city 2001.

    Sometimes while running the car when i apply brakes at a signal or anywhere to stop the car and when the car comes to a halt the engine stops running and i have to start it again.

    Also sometime the car pickup is not that great and engine seams to die down.

    What could be the problem? Should i replace plugs? Or should i use fuel system cleaner for cleaning intake and fuel injectors etc.

    The car mostly runs on cng with approx 145,000 km on the odometer.

    Thanks in advance for your help

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    -------------------------------

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    If this problem happens only on cng,then clean air filter & change spark plugs.
    Never loose hope in life,every step gives u something.

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    @argt65

    Yes this happens on cng

    installed new air filter few days ago. will definitely check the spark plugs

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    best and cheap solution is venturi. rock solid rpm forever.
    The best car safety device is a rear-view mirror with a cop in it.

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    also check the intake pipe, whether it is half blocked(taped) or open.
    The best car safety device is a rear-view mirror with a cop in it.

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    @waqar19

    Sorry but what is venturi? kindly explain briefly

    and as now u mention rpm i have noticed that when running wid petrol at idle the rpm needle is usually at 700-1000

    But on cng needle of rpm meter is close to zero at idle

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    Quote Originally Posted by umairbvs View Post
    @waqar19

    Sorry but what is venturi? kindly explain briefly

    and as now u mention rpm i have noticed that when running wid petrol at idle the rpm needle is usually at 700-1000

    But on cng needle of rpm meter is close to zero at idle
    I own a City 2002 but its on petrol. I have had a very brief experience with CNG car and what I can say is that for a CNG car, when u run it on petrol, the idle RPM shud be between 1000-1500. The RPM on CNG is normally 500 or so less than petrol. So if ur RPM on petrol is 700-1000 then definitely it will die out when on CNG. Dont know what setting it is though, cuz as I said I hv very little experience with CNG car. If I was having this problem on a petrol car and the car was running fine otherwise, then I wud get its IAC checked and have the idle RPM rest by a EFI tuner.

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    Quote Originally Posted by umairbvs View Post
    @waqar19

    Sorry but what is venturi? kindly explain briefly

    and as now u mention rpm i have noticed that when running wid petrol at idle the rpm needle is usually at 700-1000

    But on cng needle of rpm meter is close to zero at idle
    better search yourself.there are many threads regarding cng venturi.
    and also car runs fine on petrol means Idle Air Control Valve(IACV) is working.
    The best car safety device is a rear-view mirror with a cop in it.

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    ur cng advancer is not working same problem was in my 2001 city and i got check the advancer wiring now my car is on 700-1000 rpm on cng and 1000-1200 rpm on petrol on idle
    Muhammad Ali Murad

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