Cold Start Injector: Description and Operation

Cold Start Injector:

The cold start valve, located on the intake manifold, is used to provide fuel enrichment for easy starting, even at very low ambient temperatures. The valve is ECU controlled and operates for varying periods of time, depending upon the signal from the coolant temperature sensor. Fuel is supplied to the valve at system pressure from a port on the fuel distributor. At very low temperatures, the valve provides additional fuel for as long as 10 seconds after initial cranking begins. At warmer temperatures, the duration is reduced.