Closed Loop Fuel Control Operation

Closed Loop Fuel Control Operation:

The closed loop fuel control operation will not take place under any of the following conditions:
^ At engine start up.
^ When the fuel injection is increased just after engine start up.
^ When the Engine Coolant Temperature (ECT) sensor is indicating a low coolant temperature.
^ When the engine is operating under a high demand, such as Wide Open Throttle (WOT).
^ At fuel cutoff.
^ When the HO2S 1 is cold, open loop operation.

Control of the air supply that is mixed with the metered fuel is detailed in the description of the air intake system. Refer to Air intake System Description.