Car runs jerky on Petrol

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Car runs jerky on Petrol

Hi Guys !
Ur suggestions are required as I have Premio 99 ( 1800 CC ) Fully Auto/Elect. The Problem is that when ever i switch my car to Petrol from CNG for some distance it behaves normal but after that it starts giving u jerks as if there is some kachra or missing sort of thing but when u press the accelator hard the car gets free as there was nothing, The pick, running every thing works fine and again once u hold/keep the accelarator constant, it again start behaving the same ( jerky ). I showed to different mechanics and according to their suggestions changed the filter, Plugs, Got the electric sensors checked and they were working fine but nothing happened. Once I stop my car at some crossing or at any other place the engine will run very smooth and the slow running will also be very smooth but the momment u hard press the accelator it will give the jerky movement. Nothing of this sort has been noticed on CNG. ur suggestions are required or needed

Gari.pk User 4652 asked on 19 Jul 2010 15:43:39 pm

1 Answer

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Rehan - on 19 Jul 2010 15:43:53 pm

Well done...........who did that conversion? ask him to put atleast emulator to do proper conversion of fuel, Seems your both fuels are mixing togather.

Emulator will allow only 1 fuel at a time, ask the gentleman that either he cuts off the petrol injectors or the fuel pump, never let the injectors run without fuel, you may burn them.

BTW who is your installer?

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