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Home >> Mazda >> 1987 >> B2600 Base, 2D Pickup >> Repair and Diagnosis >> Engine Performance >> System >> 2.6L Feedback Carburetor System >> Operation >> Loop Control >> Open Loop Control (No Feedback Control)
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Open Loop Control (No Feedback Control)

Feedback system does not operate during engine start, warm up, heavy load or deceleration. Air/fuel ratio is controlled by predetermined values for engine speed, throttle valve angle and coolant temperature.