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The SPN 97 FMI 3 fault code indicates a 'Water in Fuel Circuit Failed High' condition in a diesel engine. This diagnostic trouble code suggests that the Engine Control Module (ECM) has detected an abnormally high signal from the water-in-fuel sensor, which could mean excessive water content in the fuel system or an electrical issue with the sensor circuit.What SPN 97 FMI 3 MeansThe SPN 97 FMI 3 fa read more

The SPN 96 FMI 19 fault code is a diesel engine diagnostic trouble code indicating that the fuel level sensor has received network data in error. This means the Engine Control Module (ECM) is detecting an issue with the data being transmitted from the fuel level sensor, which could affect the accuracy of the fuel level readings.What SPN 96 FMI 19 MeansThe SPN 96 FMI 19 fault code specifically rela read more

The SPN 96 FMI 13 fault code is a diesel engine diagnostic trouble code indicating that the fuel level sensor is missing or not available. This code is triggered when the Engine Control Module (ECM) fails to receive a valid signal from the fuel level sensor, which is crucial for monitoring the fuel level in the tank.What SPN 96 FMI 13 MeansWhen the SPN 96 FMI 13 fault code appears, it signifies an read more

The SPN 96 FMI 2 fault code is a diagnostic trouble code indicating that the fuel tank level sensor is stuck in position. This diesel engine fault code suggests that the ECM is not receiving a changing signal from the fuel level sensor, which could mean the sensor is stuck or there is an issue with the wiring or connectors. What SPN 96 FMI 2 Means The SPN 96 FMI 2 fault code specifically points t read more

The SPN 94 FMI 16 fault code is a diesel engine diagnostic trouble code indicating that the fuel filter requires replacement. This code is triggered when the Engine Control Module (ECM) detects a restriction in the fuel flow, typically due to a clogged or restricted fuel filter. The ECM monitors the fuel filter restriction sensor to determine when the filter needs attention.What SPN 94 FMI 16 Mean read more

The SPN 94 FMI 15 fault code is a diesel engine fault code indicating a Fuel Filter Service Warning. This diagnostic trouble code alerts technicians to potential issues within the fuel system, specifically related to the fuel filter's condition. The Engine Control Module (ECM) interprets this fault when it detects a restriction or differential pressure across the fuel filter that exceeds normal op read more

The SPN 94 FMI 4 fault code indicates a problem with the low side fuel pressure sensor circuit, specifically that the circuit has failed low. This diesel engine fault code suggests that the Engine Control Module (ECM) is receiving a signal from the sensor that is below the expected range, which can affect fuel delivery and engine performance.What SPN 94 FMI 4 MeansThe SPN 94 FMI 4 fault code repre read more

The SPN 94 FMI 3 fault code is a diagnostic trouble code indicating that the low side fuel pressure sensor circuit has failed high. This diesel engine fault code suggests that the Engine Control Module (ECM) is receiving a higher than expected voltage signal from the low side fuel pressure sensor, which could be due to electrical issues or sensor failure.What SPN 94 FMI 3 MeansThe SPN 94 FMI 3 fau read more

The SPN 94 FMI 2 fault code is a diesel engine diagnostic trouble code indicating that the low side fuel pressure is not plausible. This means the Engine Control Module (ECM) is detecting a discrepancy in the expected fuel pressure readings from the low side of the fuel system. The ECM relies on accurate fuel pressure data to ensure optimal engine performance and efficiency.What SPN 94 FMI 2 Means read more

The SPN 91 FMI 31 fault code is a diesel engine diagnostic trouble code indicating that the 2-channel accelerator pedal learned range is too large. This code suggests an issue with the accelerator pedal position sensor, where the Engine Control Module (ECM) detects a discrepancy in the expected range of pedal position signals. What SPN 91 FMI 31 Means When the SPN 91 FMI 31 fault code is active, i read more