Volvo Engine D13F Fault Code: PID 131 FMI 3 Exhaust Back Pressure
Volvo Engine D13F Fault Code: PID 131 FMI 3 Exhaust Back Pressure
CONTROL UNIT:
Engine ECU
DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that the voltage is above 4.8 V.
SYMPTOM:
Reduced engine brake power.
POSSIBLE CAUSES:
1. Sensor fault.
2. Damaged wiring harness.
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