hitachi — FUEL INJECTION AMOUNT CORRECTION CONTROL

SYSTEM / ECM System FUEL INJECTION AMOUNT CORRECTION CONTROL Purpose: Corrects fuel injection amount to the best fuel injection timing and amount. 1. When the engine starts and engine speed is lower than the engine start correction speed (550 min 1 ), ECM corrects fuel injection amount. (Start Cor- rection) 2. ECM corrects fuel injection amount according to the signals from the atmospheric pressure sensor. (High Altitude Correction) 3. ECM controls the two-way valve in injector and controls the best fuel injection amount.

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