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Trouble Shooting Guide
The engine runs erratically • Air in fuel system
• Defective excess flow valve
• Blocked fuel filter
• Low feed pressure
• Clogged air filter
• Blocked fuel tank ventilation
• Disconnected fuel line (diffuser jet)
• Defective injector
• Defective injection pump
• Defective feed pump
• Incorrect fuel type
• Serious engine damage
Problem Cause