Operation Section
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• Maximum Injection Quantity
This is determined based on the basic maximum injection quantity determined by the engine speed, and the added
corrections for coolant temperature, fuel temperature, intake air temperature, atmospheric temperature, intake air
pressure, atmospheric pressure, and full Q adjustment resistance (only for the 1st generation HP0 system), etc.
Corrections
• Cold Engine Maximum Injection Quantity Correction
When the coolant temperature is low, whether during start-up or during normal operation, this correction increases
the injection quantity.
• Intake Air Pressure Correction
When the intake air pressure is low, the maximum injection quantity is restricted in order to reduce the emission of
black smoke.
QB0717E
Engine Speed
Basic Maximum
Injection Quantity
Injection Quantity
Engine Speed
Q000891E
Q000892E
Engine Speed
Intake Air Pressure
Correction Quantity
Injection Quantity
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