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Home >> Geo >> 1994 >> Prizm Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel System >> Fuel Control >> Fuel-Cut System

Fuel-Cut System

ECM/PCM controls fuel injection based on signals from TP sensor and MAP sensor. During sudden deceleration ECM/PCM fuel-cut system will stop fuel injection to prevent unburned gases from being exhausted. Fuel injection operation will be stopped when throttle is at idle position and engine speed is 3500 RPM or more. Fuel injection operation will resume when engine speed is less than 1400 RPM.