The key function of an emulator is to fool the ECU, which believes the Injectors are all working well and not log any DTC, while engine is working on LPG gas. Addition function is to smooth the transition from LPG gas to petrol injection or from petrol to gas, because LPG gas needs some time to travel from vaporizer to engine cylinder, as most of the modification is single point injection placed near the throttle body.
