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Home >> Isuzu >> 2003 >> Axiom Base, RWD >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel System >> Fuel Control >> Fuel Disable Mode - Engine Speed
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Fuel Disable Mode - Engine Speed

The PCM monitors engine speed. It turns off the fuel injectors when the engine speed increases above 6400 RPM. The fuel injectors are turned back on when engine speed decreases below 6150 RPM.