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VOLVOUU All Engines (2017 Emissions) Fault Code: P047164 PID: EMS Engine Exhaust Back Pressure Circuit Range/Performance

VOLVOUU All Engines (2017 Emissions) Fault Code: P047164 PID: EMS Engine Exhaust Back Pressure Circuit Range/Performance

Conditions for diagnostic trouble code (DTC):
1) The engine brake is activated but the expected exhaust back pressure (EBP) is not achieved

Observable symptoms
1) Engine brake, poor brake performance/Brake performance too high

Probable cause
1) Faulty connection
2) Exhaust back pressure sensor
3) Air valve unit
4) Butterfly
5) Control valve, VCB
6) Leakage from hoses or connections

Additional information

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