I have exactly the same problem with my Liana FF-CNG. My car starts missing like anything when on cng, whether idling or driving. It feels as if the car cannot breathe. I have taken my car to margalla motors, they said they will first carry out tuning, if that doesn't work, then spark plugs, then throttle body service, then tappit adjustment and shims...etc
And if none of that works I will have to pay for all those things plus the fault is then definitely with the coils. Sounds ridiculous! Why dont they simply check the coils in the 1st place.
Then suzuki defence motors said something is wrong with 2 out of the 4 injectors. 2 will have to be replaced at a cost of 18000.
I do not know exactly what the problem is. Regular cng walas all refuse to diagnose a liana ff-cng. I tried friends etc
The things is that this problem came 7-8 months ago but to lesser level, but then it became alright on its own and car started running fine. This time I had cng filled from a new place and since then I have been having this problem. Please advise what should i just take off this kit and put the normal landi renzo kit?
Atleast I will not be blackmailed by pak suzuki.