as salam o alaikum,
My corolla 16 Volve engine, EFI, have First start problm.
Everyday, when i start for first time in morning (or any time) the engine turns Off when auto switching to CNG from PETROL; (No matter how much accelerator or trottle i give, it must tuns off and i have to start it again).
After this, switching works better for the whole day, and next day, in cold start again it goes OFF during first switch from Petrol to CNG.
Any suggestions plz