CNG Cultus VXRi 2010 with EFI. It's having a strange problem. When on CNG, its RPM starts fluctuating(it goes down/up), Sometimes after 10/12 KMs, it gets OK and there's no such prob. But now this happens very rarely that it becomes OK, on petrol there's no problem and it goes on quite fine. <br />Does anybody faced this issue and found out the cure of this issue please let me know
