Injectors

Injectors:

The precise amount of fuel that each cylinder is to receive at any given moment is calculated on the basis of several ECM input signals.

When the engine is running, the ECM sends signals to pins 3, 4, 5 and 6 in the correct firing sequence, i.e. pins 3-5-6-4, which correspond to cylinders 1-3-4-2. Conditions are different during the starting phase.