Hi,
Few days ago my car had a problem that when i switch it to Petrol from CNG the engine started vibrating heavily (no vibration on CNG though). I went to a workshop, the mechanic did some tapet adjustment and changed the spark plugs which were in bad condition.Now that problem is no more there but another strange thing happens.
When i start the engine (when the engine is cold) it starts immidiately (it used to take about 3-4 seconds before)but as soon as key is back to its original position engine turns off. I do it again but same thing happens so what i have to do is to push accelerator many times untill the engine is warm and then engine will stabilize. I have also tried using choke while starting the engine on both CNG and petrol but the situation is same. Engine is 25000KM old.
Nauman
