XJ-6 L6-3.6L (1989)
Engine Control Module: Description and Operation
Overrun Fuel Cut-Off
PURPOSE
Improves fuel economy and aids in emission control.
OPERATION
The ECU initiates fuel cut-off (cancels injector operation) when throttle is closed, engine speed is above 1100 rpm, coolant temperature is above 86°F
(25°C) and 1500 rpm has been exceeded since engine start.
