Operation Section
1
–
70
• Atmospheric Pressure Correction
The maximum injection quantity is increased and decreased according to the atmospheric pressure. When the atmo-
spheric pressure is high, the maximum injection quantity is increased.
• Injection Quantity Delay Correction for Acceleration
During acceleration, if there is a large change in the accelerator pedal opening, the injection quantity increase is de-
layed in order to prevent black smoke emissions.
• Full Q Adjustment Resistance (Only for 1st Generation HP0 Systems)
The full Q resistance is for correcting the injection quantity for a full load. The maximum injection quantity is increased
or decreased by the car manufacturer to match to standards. There are 15 types of full Q adjustment resistance. The
appropriate one is selected and used.
Q000893E
Engine Speed
Atmospheric Pressure
Correction Quantity
Injection Quantity
Q000487E
Time
Change in Accelerator
Pedal Position
Injection Quantity
After Correction
Delay
Injection Quantity
+5V
ECU
VLQC
A-GND
Quantity Adjustment
Resistor Correction Voltage
Quantity Adjustment
Correction Injection Quantity
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