Fuel Shut-Off Mode

ECM has the ability to completely turn OFF all of the injectors or selectively turn OFF some of the injectors when certain conditions are met. These fuel shut-off modes allow the ECM to protect the engine from damage and also to improve the vehicles driveability.

ECM will disable all of the 6 injectors under the following conditions:

• Ignition OFF. This prevents engine run-on.
• Ignition ON but no ignition reference signal. This prevents flooding or backfiring.
• A high engine speed, above redline.
• A high vehicle speed, above rated tire speed.
• The extended high speed closed throttle coast down - reduces the emissions and increases engine braking.

ECM will selectively disable the injectors under the following conditions:

• The torque management enabled, transmission shifts or abusive maneuvers.
• The traction control enabled, in conjunction with the front brakes applying.