Diagnostic trouble code (DTC) information ECM-261A

Condition 

The engine control module (ECM) checks the difference between the requested pressure and the actual pressure in the fuel rail.

Diagnostic trouble code (DTC) ECM-261A is stored in the engine control module (ECM) if the engine control module (ECM) registers that the difference between the requested pressure and the actual pressure is too great.

Diagnostic trouble code (DTC) ECM-261A can be diagnosed when the engine is running.

Substitute Value 

• The fuel pump (FP) shuts down in event of large deviations in fuel pressure.

Possible Source 

Faulty signal 

• The relief valve in the pump has jammed (defective pump)
• Leakage in the fuel lines to the fuel rail
• Defective fuel pressure sensor
• Defective fuel pump (FP).

Fault symptom[s] 

• The engine fails to start
• The engine cuts out
• The engine misfires.