Volvo Engine Code MID 128 PPID 387 FMI 4

MID 128 PPID 387 Temperature Sensor, Catalytic Converter Type of fault: FMI 4 FMI Description: • Voltage below normal or shorted low Fault Condition: • Short to ground on the metering side of the circuit Possible Symptoms: • Poor driveability Possible Cause: • Faulty harness • Sensor failure