Bobcat G2 Stage V Engine P000F Common rail pressure Open Error Solution

This instruction show you guide on how to solve Bobcat G2 Stage V engine P000F common rail pressure relief valve is open error.

 

What you need?

Doosan uVIM Diagnostic Kit

Bobcat V2 Engine Analyzer

Bobcat Diagnostic Kit

 

Fault Code:

P000F:Common rail pressure relief valve is open

 

Overview:

ESPN FMI:E00557125

 

Reason:

1 Fuel LPC problem (No fuel in tank, Fuel leakage before HP pump, Fuel filter plugged, fuel return line clogging)

2 Fuel HPC problem (Injector close stuck, Faulty HP pump, Metering unit sticking, leaking)

3 Electrical problem (Metering unit connector, Wiring harness from Metering unit to ECU, ECU power supply) * LPC (Low pressure circuit) / HPC (High pressure circuit)

 

Effect:

CE lamp ON Torque Reduction 1(Mild)

Max engine speed limit (<1500rpm) DPF regeneration inhibit by Active and Forced.

 

Component Location

Common rail pressure relief valve is located on opposite to rail pressure sensor.

 

Condition for Running Diagnostic

Engine running

 

 

Condition for Setting the Fault Code

Common rail pressure relief valve(PRV) is open.

The PRV open occurs when the rail pressure rises above 1950 bar, so if the fault recurs within

a short time, a low pressure circuit (LPC) and high pressure circuit(HPC) check is required.

* LPC : Whole system from Fuel tank to Fuel high pressure pump

* HPC : Whole system from high pressure pump to Injector

 

If there is no problem with the LPC/HPC and other electric faults, and PRV open fault is only

occurred, it could be an ECU power supply issue during very short time(<~30ms). Therefore,

it should be checked the ECU power supply electric wire (including the connectivity of the ECU

electric connector, battery electric connector) and determine the cause of the unstable ECU

power supply.

 

Condition for Clearing the Fault Code

FIE system is operated normally

 

Check List: