HELLO friends i need to know that if the car starts perfectly on petrol ,,,,,but couldnt start on cng what are the causes
1)if battery is not working fine...........(gives me no problem on petrol starts on a single crank even after 3 to 4 days)if its related to battery it should hv give me the same problem in case of petrol but it doesnt
2)did several tunings but the issue remains the same.
3)if its the sulf bushes why it starts perfectly in case of petrol.
4)if its the gas kit ,,,but my car doesnt heatup but yes i noticed a very very small decrease in radiator water after 2 days respectively.(hardly 10 to 20 drops)
please please guys i really need an expert opinion i dont know what to do