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Volvo Engine Code MID 128 PSID 98 FMI 1
MID 128 PSID 98 Boost Air System Type of fault: FMI 1 FMI Description: • Data valid but below normal operational range — most severe level Fault Condition: • Boost pressure is too low Possible Symptoms: • Engine derate • Engine slow to respond Possible Cause: • Faulty Boost Air System hoses, pipes, brackets, cooler, EGR system components and turbo components