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Home >> Acura >> 1998 >> Integra GS-R, 4D Sedan >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel System >> Fuel Control >> Fuel Cut-Off
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Fuel Cut-Off

During deceleration, with throttle valve closed and engine speed more than a preset value, voltage to fuel injectors is cut off. This is to reduce exhaust emissions. Voltage to fuel injectors is also cut off whenever engine speed exceeds a preset value, regardless of throttle valve position. This is to protect engine from over-revving. See ENGINE SPEED FUEL INJECTOR CUT-OFF .

ENGINE SPEED FUEL INJECTOR CUT-OFF

Application (1) Deceleration Engine RPM (1) Acceleration Engine RPM
Integra
B18B1 Engine 970 7000
B18C1 Engine 970 8100
B18C5 Engine 1300 8600
2.3CL 1100 6500
2.5TL 1250 7100
3.0CL 1100 6600
3.2TL 1000 6500
3.5RL 1000 5900
(1) Fuel injector cut-off will occur when engine speed exceeds value.