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