Cold Start Control

During engine start-up, an increased quantity of fuel is injected according to coolant temperature and engine speed. If an engine re-start is attempted within one minute, the complete initial quantity is no longer injected.

During engine warm-up, the injected fuel quantity is reduced according to coolant temperature and engine speed in order to avoid a rich mixture. After warm-up to an engine coolant temperature of at least 158°F (70°C), injector timing (pulse width) is adapted to engine speed and load.