Deutz Fault Code
Free · no signupSPN 102 FMI 2
Turbo surge; Black smoke; Poor acceleration; Derate.
System
Not specified
Symptom
Turbo surge; Black smoke; Poor acceleration; Derate.
Diagnosis & fix steps
Boost Pressure Signal Implausible
LOGIC: The boost sensor reading doesn't match the atmospheric pressure at startup.
ACTION: Inspect the boost sensor for soot blockage. Check turbo hoses for cracks/leaks.
FIX: Clean or replace the Charge Air (Boost) Pressure Sensor.
Red Seal field insights
Always check the "Ambient Pressure" and "Boost Pressure" with the key on/engine off. They should be identical (roughly 14.5 psi at sea level).
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