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Home >> Pontiac >> 1987 >> Fiero Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - TBI >> Operation >> Electronic Control Module (ECM) >> Clear Flood

Clear Flood

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If engine is flooded, driver must depress accelerator pedal to wide open throttle position. At this position, ECM calculates injector pulse width equal to air/fuel ratio of 20:1. This air/fuel ratio will be maintained as long as throttle remains in wide open position and engine speed is below 600 RPM. If throttle position becomes less than 80 percent open and/or engine speed exceeds 600 RPM, ECM changes injector pulse width to that used during engine starting (based upon coolant temperature and manifold vacuum).