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Denso 4D56 - Page 34

Denso 4D56
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Operation Section
1
29
(2) Maximum Injection Quantity
This is determined based on the basic maximum injection quantity determined by the engine speed, and the added corrections for in-
take air pressure.
(3) Starting Injection Quantity
When the starter switch is turned ON, the injection quantity is calculated in accordance with the starting base injection volume. The
base injection quantity and the inclination of the quantity increase/decrease change in accordance with the water temperature and the
engine speed.
(4) Idle Speed Control (ISC) System
This system controls the idle speed by regulating the injection quantity in order to match the actual speed to the target speed calculated
by the engine ECU.
Basic Injection Quantity
Engine Speed
Accelerator Opening
Q000888E
QB0717E
Engine Speed
Basic Maximum
Injection Quantity
Base injection
quantity
Starter ON time
Start
Water temperature
STA/ON
QD0805
Injection quantity

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