Volvo All Engines (2017 Emissions) Fault Code: P047F00 PID: EMS Exhaust Pressure Control Valve “A” Stuck Open
Volvo All Engines (2017 Emissions) Fault Code: P047F00 PID: EMS Exhaust Pressure Control Valve “A” Stuck Open
Conditions for diagnostic trouble code (DTC):
1) Sensor value does not change with changing conditions
Observable symptoms
1) Engine brake, poor brake performance/Brake performance too high
Probable cause
1) Exhaust back pressure sensor
2) Leakage from hoses or connections
3) Clogged or blocked air system
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