Volvo All Engines (2010 Emissions) Fault Code: SPN 2791 FMI 3 PID: SID 146 Engine Exhaust Gas Recirculation (EGR) Valve Control
The EGR Valve operation is controlled by the Engine Control Module (ECM) using a pulse width modulated signal.? The ECU provides both the power and ground circuits. The EGR Valve assembly consists of a solenoid, operating a valve by hydraulic pressure provided by the engine?s oiling system.
Conditions for diagnostic trouble code (DTC):
1) Current draw greater than 3?A
Observable symptoms
1) Loss of power
Probable cause
1) Wires between EGR Valve and Engine Control Module (ECM)
2) EGR extension harness
3) Connector
4) EGR Valve
5) Electronic Control Unit
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