Starting Mixture Enrichment Control
WARNING: This page is about a different variant/trim than selected.
System Diagram
System Diagram
During cold start, ECM enables the injection of more fuel than normal start to perform a smooth engine start.
ECM calculates the injection time of the starting mixture enrichment control, based on the following sensors and signals.
- Engine coolant temperature sensor
- Crankshaft position sensor (Engine speeds, Crankshaft position)
- Battery (Battery voltage)
The starting mixture enrichment control continues operating until coolant temperature and engine speed exceed the specified value. Fuel injection time calculated by ECM decreases as the coolant temperature rises.In addition, fuel injection time changes, depending on battery voltage. ECM extends fuel injection time to achieve sufficient fuel injection when the battery voltage is low.