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Volvo All Engines (2013 Emissions) Fault Code: P257831 PID: EMS Turbocharger Speed Sensor

Volvo All Engines (2013 Emissions) Fault Code: P257831 PID: EMS Turbocharger Speed Sensor

The Turbo Speed Sensor is an inductive sensor. When the engine is running, the turbocharger shaft rotates past the Turbo Speed Sensor tip and a pulsed voltage signal is generated. The Engine Control Module (ECM) monitors the frequency of the signal generated by the Turbo Speed Sensor to calculate the turbo speed.
The turbo speed signal is used to calculate fuel injection.

Observable symptoms
1) Low Power

Probable cause
1) Turbo Speed Sensor
2) Incorrectly installed sensor
3) Open circuit, Signal wire
4) Open circuit, Ground wire
5) Short circuit to battery voltage, Signal wire
6) Short circuit to ground, Signal wire
7) Charge air pressure sensor
8) Engine control module (ECM)

Volvo All Engines (2013 Emissions) Fault Code: P256300 PID: EMS Engine Intake Manifold #1 Pressure Circuit Range/Performance
Volvo All Engines (2013 Emissions) Fault Code: P256214 PID: EMS Turbocharger Boost Control Position Sensor “A”
Volvo All Engines (2013 Emissions) Fault Code: P256000 PID: EMS Engine Coolant Level Low
Volvo All Engines (2013 Emissions) Fault Code: P255900 PID: EMS Engine Coolant Level Circuit High
Volvo All Engines (2013 Emissions) Fault Code: P255800 PID: EMS Engine Coolant Level Circuit Low
Volvo All Engines (2013 Emissions) Fault Code: P255613 PID: EMS Engine Coolant Level Sensor/Switch