FUSO 4M4 – FUEL AND ENGINE CONTROL – STRUCTURE AND OPERATION – Fuel injection quantity control

(1) Fuel injection quantity during engine startup
โ€ข During engine startup, the fuel injection quantity is determined in accordance with the engine speed and coolant temperature.

(2) Basic fuel injection quantity
โ€ข The basic fuel injection quantity is determined in accordance with the engine speed and throttle opening.

(3) Maximum injection quantity
โ€ข The maximum injection quantity is calculated from the engine speed and boost pressure.

(4) Fuel injection rate adjustment resistor correction amount
โ€ข To limit inconsistency in the injection quantity, the injection quantity is corrected by the fuel injection rate adjustment resistor.