Cold Starting

Cold start injector is eliminated using MCU's programmed temperature-related start recognition. During cold engine cranking, additional fuel is injected for first 5 crankshaft revolutions to increase fuel dispersion. Ignition timing is controlled according to cranking speed and initial temperature and is adjusted simultaneously with fuel quantity.

After 5 revolutions, injected fuel is metered down for next 14 revolutions, allowing proper warm-up. As engine speed increases above 600 RPM, fuel quantity is further reduced. Warm-up functions are dependent on coolant temperature, engine speed and engine load.