Volvo

Volvo 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 symptoms1) Engine brake, poor brake performance/Brake performance too high Probable cause1) Faulty connection2) Exhaust back pressure sensor3) Air valve unit4) Butterfly5) Control valve, VCB6) Leakage from hoses or connections Volvo All Engines (2017 Emissions) Fault Code: P047013 PID: EMS Exhaust Pressure Sensor “A” Volvo All Engines (2017 Emissions) Fault Code: P046C64 PID: EMS EGR Differential Pressure Sensor Circuit Range/Performance Volvo All Engines...

Volvo All Engines (2017 Emissions) Fault Code: P047300 PID: EMS Engine Exhuast Back Pressure Circuit High The Engine Coolant Temperature Sensor is a thermistor. The resistance of the Engine Coolant Temperature Sensor changes inversely to the temperature of the engine coolant. When the coolant is cold, the sensor resistance is high. As the temperature of the coolant increases, the sensor resistance decreases.The Engine Control Module (ECM) monitors the voltage drop across the Engine Coolant Temperature Sensor.The coolant temperature signal is used to calculate fuel injection and to evaluate operating conditions of the engine coolant temperature. Examples of conditions that may...

Volvo All Engines (2017 Emissions) Fault Code: P047511 PID: EMS Exhaust Pressure Control Valve “A” Circuit descriptionThe purpose of the engine exhaust brake closed loop butterfly valve (butterfly valve) is to create a controlled exhaust back pressure upstream of the butterfly valve. The butterfly valve consists of the housing, shutter, shaft, bushings, pneumatic actuator, spring, and a bracket assembly. The shutter is kept in an open position by the spring when not activated. A pneumatic actuator closes the shutter when activated. The actuator is activated by the Engine Control Module (ECM). An exhaust pressure sensor located upstream from the shutter...

Volvo All Engines (2017 Emissions) Fault Code: P047512 PID: EMS Exhaust Pressure Control Valve “A” Circuit descriptionThe purpose of the engine exhaust brake closed loop butterfly valve (butterfly valve) is to create a controlled exhaust back pressure upstream of the butterfly valve. The butterfly valve consists of the housing, shutter, shaft, bushings, pneumatic actuator, spring, and a bracket assembly. The shutter is kept in an open position by the spring when not activated. A pneumatic actuator closes the shutter when activated. The actuator is activated by the Engine Control Module (ECM). An exhaust pressure sensor located upstream from the shutter...

Volvo All Engines (2017 Emissions) Fault Code: P047513 PID: EMS Exhaust Pressure Control Valve “A” Conditions for diagnostic trouble code (DTC):1) Current below normal or open circuit Diagnostic operating conditions1) Ignition key in ON position Observable symptoms1) The exhaust brake does not function2) Low Power Probable cause1) Open circuit between air valve unit control valve and engine control module (ECM)2) Open circuit on supply wire to air valve unit3) Open circuit in air valve unit control valve Volvo All Engines (2017 Emissions) Fault Code: P047300 PID: EMS Engine Exhuast Back Pressure Circuit High Volvo All Engines (2017 Emissions) Fault Code:...