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Volvo All Engines (2017 Emissions) Fault Code: P040397 PID: EMS EGR “A” Control

Volvo All Engines (2017 Emissions) Fault Code: P040397 PID: EMS EGR “A” Control

Conditions for diagnostic trouble code (DTC)
Incorrect EGR valve position

Observable symptoms
High fuel consumption

Probable cause
1) EGR valve stuck