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Home >> Isuzu >> 2004 >> Axiom Base, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Information & Procedures >> General Description >> General Description (Fuel Metering) >> Engine Speed/Vehicle Speed/Fuel Disable Mode

Engine Speed/Vehicle Speed/Fuel Disable Mode

The ECM 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 6350 RPM.