Dechoke Control System

DESCRIPTION

To facilitate engine "start up" when the spark plugs become fouled, such as when the engine is flooded, fuel injection is cut if the throttle valve is held wide open while cranking and the engine coolant temperature is 32°F (0°C) or below. This allows the spark plugs to dry and purges excess fuel from the cylinders.

SYSTEM OPERATION

1. Check if the engine coolant temperature is below 32°F (0°C).





2. For BP DOHC only, if the engine coolant temperature is above 32°F (0°C), disconnect the engine coolant temperature sensor connector (C144) and connect an approximately 10 K ohms resistor to the connector.





3. Turn the ignition switch to START and verify that the injector operating sound is heard.
4. Depress the accelerator pedal fully and turn the ignition switch to START. Verify that no injector operating sound is heard.