PUMP GP-PISTON 3782822 - Caterpillar

Probable Causes
Electrical power supply
Low fuel pressure and/or carburetor
Connectors for the Ignition transformers
Magneto
Magneto Interface Box (MIB)
No speed sensor signal
No crank angle sensor signal
Timing Control Module (TCM)Recommended Repairs
Electrical Power Supply
Refer to Troubleshooting, "Electrical Power Supply". If the DDT will not communicate with the TCM, refer to Troubleshooting, "DDT Troubleshooting".Low Fuel Pressure and/or Carburetor
Refer to Systems Operation/Testing and Adjusting, SENR4604, "Troubleshooting".Connectors for the Ignition Transformers
Check the connections to the ignition transformers. Verify that the wiring is correct.Magneto
Replace the magneto. Refer to Systems Operation/Testing and Adjusting, SENR4604, "Magneto Installation" and Troubleshooting, "Magneto Calibration".Magneto Interface Box (MIB)
Replace the MIB.Speed Sensor Signal
Refer to Troubleshooting, "Speed Sensor".Crank Angle Sensor Signal
Refer to Troubleshooting, "Crank Angle Sensor".Timing Control Module (TCM)
Replace the TCM. Refer to Troubleshooting, "Programming the TCM".