Actually, I got my Zen Estilo installed with a Lovato CNG kit 1.5 years back. Till now it was ok, but now I noticed a drastic fall in the performance of my car while in CNG mode. As soon as the rpm goes down, the engine stops, as a result, I have to keep the accelerator pressed.
If the roads are clear and the car is in proper motion, then everything is fine, even with the AC on. But as soon as I slow down, the engine stops. Sometimes it works fine, but whenever I switch on the AC, engine stops with zerks. As I live in Mumbai, Its almost impossible to find the clear roads, especially in peak hours, Its mandatory to move on USS (Ultra Slow Speeds

So, I would really appreciate if somebody please help me deal with this. I am desperately looking for help. Atleast just suggest me any good CNG docter.
Thanks & Regards,
Ashish