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Volvo Engine D11L (Tier 4) Fault Code: PID 107 FMI 4 Air Filter Pressure Drop

Volvo Engine D11L (Tier 4) Fault Code: PID 107 FMI 4 Air Filter Pressure Drop

CONTROL UNIT:
Engine ECU

DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that the voltage is below 2.2 V (0.09 x Ubat).

SYMPTOM:
None

POSSIBLE CAUSES:
1. Signal line contains a short circuit to a lower voltage.
2. Defective sensor.