VALVE GP-CONTROL 2010669 - Caterpillar

codes
Fuel level
Oil level
Starting aids
Shutdown switch
Active Engine Shutdown
Electrical connectors
Circuit breakers
Flash file
Engine speed/timing
Injection actuation pressure
Unit injectors
Fuel supply
CombustionRecommended Actions
Diagnostic Codes and Event Codes
Certain diagnostic codes and/or event codes may prevent the engine from starting. Connect the Caterpillar Electronic Technician (ET) and check for active codes and/or logged codes. Troubleshoot any codes that are present before continuing with this procedure.Fuel Level
Visually check the fuel level. Do not rely on the fuel gauge only. If necessary, add fuel.Oil Level
Check the engine oil level. If necessary, add oil.Note: Engine oil supplies the injection actuation pressure circuit. Proper engine oil level is necessary for fuel injection.Remote Shutdown Switch
Make sure that the remote shutdown switch is run position. Use Cat ET to verify the status of the shutdown switch. If a problem with the remote shutdown switch is suspected, refer to Troubleshooting, "Switch Circuits - Test".Electrical Connectors
Check for correct installation of the following connectors:
J1/P1 ECM connector
J2/P2 ECM connector
J20/P20 Engine speed/timing sensor connector
J44/P44 Engine speed/timing sensor connector
Unit injector connectorsRefer to Troubleshooting, "Electrical Connectors - Inspect".Circuit Breakers
Check the circuit breakers. if a circuit breaker is tripped, reset the circuit breaker.Flash File
Verify that the correct flash file is installed in the ECM.Note: If a new ECM has been installed, the ECM will need to be programmed before the engine will run. Also, the ECM will not communicate with Cat ET if the ECM has not been programmed.Engine Speed/Timing
Crank the engine and observe the engine speed on the status screen in Cat ET. If Cat ET indicates 0 rpm, refer to Troubleshooting, "Engine Speed/Timing Sensor Circuit - Test".
Ensure that the timing reference gear is installed correctly. The engine will not start if the gear was installed backward. Check for proper orientation between the crankshaft and camshaft drive gears. Correct the orientation and/or replace the drive gear, if necessary. Refer to Disassembly and Assembly, "Camshaft - Remove and Install".Injection Actuation Pressure
Check the engine oil level. if necessary, add oil. Verify that the pressure for the lube oil system is accurate.Note: Engine oil supplies the injection actuation pressure circuit. proper engine oil level is necessary for fuel injection.
Crank the engine while observing the injection actuation pressure on the Cat ET status screen. if the injection actuation pressure is at least 5000 200 kPa (725 29 psi), the problem is not in the injection actuation pressure control system.
Check the seals on the injection actuation pressure control valve. if the seals are faulty, replace the seals and repeat Step 1.
Check the wiring harness to the injection actuation pressure control valve for opens and/or shorts.
Measure the coil resistance on the injection actuation pressure control valve. If the coil resistance is not between 5.0 Ohms and 15.0 Ohms, replace the injection actuation pressure control valve.
If the injection actuation pressure during cranking is less than 5000 200 kPa (725 29 psi), the high pressure oil supply circuit may have a leak.
Unplug the injection actuation pressure control valve and the unit injector connectors.
This engine uses high voltage to control the fuel injectors.Disconnect electronic fuel