P053F/001343

From Ross-Tech Wiki

P053F/001343 - Fuel Pressure too Low during Cold Start

Possible Symptoms

  • Malfunction Indicator Light (MIL) ON


Possible Causes

  • Fault code will typically set when the difference between Actual and Specified Rail pressure is 15-Bar or 1.50-MPa
  • Poor fuel quantity delivery (In tank pump, fuel filter, damaged fuel lines, etc).
  • Fault with the G247-Rail Fuel Pressure Sensor, wiring, connections, etc.
  • Fault with the N276-Fuel Pressure Regulator Valve, power, ground, connections, etc.

Possible Solutions

  • Check the in-tank fuel pressure with a mechanical gauge during startup.
  • Check the Advanced Measuring Values for Rail pressures
  • Check power supply at the N276-Fuel Pressure Regulator Valve
  • Check the G247-Rail Fuel Pressure Sensor


Special Notes