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Volvo Engine Code MID 144 PID 91 FMI 4
MID 144 PID 91 Accelerator Pedal Position (Percentage) Type of fault: FMI 4 FMI Description: • Voltage below normal, or shorted to low source Fault Condition: • Abnormally low voltage Possible Symptoms: • Engine will not supply requested fuel to engine Possible Cause: • APP harness shorted low • Faulty APP sensor