HOUSING GP-FLYWHEEL 1206608 - Caterpillar

Electronic Control Module (ECM) utilizes a coolant temperature sensor's input. This input allows the improvement for starting the engine at low temperature and for warming up the engine. The cold start strategy provides the following benefits:
Quicker cold starts
Cleanup of white smoke
Reduction of strain on the battery
Extended engine lifeThe engine timing is fixed at 19.5 degrees. Note: Jacket water heaters are available for maintaining a minimum engine temperature when the engine is not running.The cold start strategy activates only under the following conditions:
Coolant temperature below 60°C (140°F)
Engine throttle in the LOW IDLE positionWhen the cold start strategy is active during engine start-up, the fuel rack travel is limited to 10 mm (0.39 inch). After the engine starts, fuel rack travel is limited to 7 mm (0.28 inch).The cold mode deactivates under the following conditions:
Coolant temperature reaches 60°C (140°F).
Engine speed increases above 1200 rpm.
The engine has been running for five minutes.Note: Electronically governed engines may crank longer than the mechanically governed engine. This happens because the electronic actuator requires some oil pressure to move the fuel rack.Fuel Rack Position Sensor Fault
A failure of the fuel rack position's sensor may have occurred if one or more of the following conditions exist:
The output for the fuel rack position's sensor is open.
The fuel rack position's sensor output is shorted to ground or to supply.
The measured reading of the fuel rack is out of specification.An intermittent failure causes drop-offs in engine speed. The ECM will detect the fuel rack position sensor fault. Then, the module will warn the operator through a diagnostic lamp. The fuel rack's related strategies will be disabled. The "SPEED ONLY" mode for the governor will be activated, so the engine will continue to run normally. The indication for the percentage of supplied power on the Computerized Monitoring System (CMS) will be inaccurate, if equipped.