NOTE: Items listed in the possible cause column generally do not set a diagnostic
trouble code (DTC) or illuminate the MIL light.
NOTE: EDI engines are used in many different applications and equipment. When
performing any system diagnosis be aware of any OEM inputs or equipment
monitoring devices that may have an effect on the engine’s performance or any of
the engine’s operating systems.
Engine Performance - No Load
Engine Runs Briefly and
Shuts Down
• Loss of Spark
• Frozen Fuel Regulator (Dry Fuel)
• Low Fuel Pressure
• Air Inlet Restriction Wiring Failure
• GCP Failure
Engine Cranks But No Start
• Faulty OEM Drivers Safety Shut-Off Seat Switch
• Coil Power Loss
• GCP Ground Loss
• GCP Power Loss Severe
• Vacuum Leak (Dry Fuel)
• Air Inlet Restriction Air Inlet Leak (Dry Fuel)
• Fuel Lock-Off Inoperative (Dry Fuel)
• Wiring Failure
• Low Fuel Pressure
• Ancillary Components Binding
• High Fuel Pressure
• Low Fuel Pressure
• Contaminated Fuel
• Incorrect Fuel Select Table Selected
• Incorrect GCP Program Installed
• Actuator Air Blockage
• Map Sensor Leak
• Intake air leak
• Fuel Contaminated
• Noise Suppression Capacitor Failure
• Improper PCV Routing
• Valve Timing
• Low Cylinder Compression
• Excessive Engine Load (Hydraulic Pump Failing,
Binding Ancillary Drive Components)
• Low Battery Voltage
• Incorrect Battery Specifications
• Incorrect Battery Cable Size
• Starter Relay
• Starter Failure (Excessive Drain)