SPN 164/FMI 4 SPN 164/FMI 4 indicates a Rail Pressure Governor Sensor Circuit Failed Low (short to ground). Check as follows: Check for multiple codes.…
Category: DD15
SPN 164/FMI 3 PN 164/FMI 3 indicates the Rail Pressure Governor Sensor circuit failed high (open circuit). Check as follows: Check for multiple codes. If…
SPN 164/FMI 5 The fault condition is typically Rail Pressure Sensor circuit open or a stuck in range sensor. Check as follows: Check for multiple…
SPN 164/FMI 7 This SPN indicates there is high pressure pump leakage or the TDC position is wrong (MU341). The fault condition is typically related…
SPN 168/FMI 0 This diagnosis is typically battery voltage high. Check as follows: Measure battery voltage with the engine running at maximum rpm. If greater…
SPN 168/FMI 1 This diagnosis is typically battery voltage low. Check as follows: Check the condition of the alternator drive belt and replace, if required.…
SPN 174/FMI 0 SPN 174/FMI 0 indicates the Supply Fuel Temperature Sensor (SFT Sensor) high. Check as follows: Turn the ignition ON (key ON, engine…
SPN 174/FMI 3 SPN 174/FMI 3 indicates a indicates a Supply Fuel Temperature Sensor (SFT Sensor) open circuit. Check as follows: Check for multiple codes.…
SPN 174/FMI 4 SPN 174, PID 174/FMI 4 indicates a SFT Sensor short circuit to ground. Check as follows: Disconnect the SFT Sensor. Disconnect the…
SPN 175/FMI 3 This diagnosis is typically engine oil temperature circuit failed high. Check as follows: Turn the ignition the ON (key ON, engine OFF).…