5458 SPN Fault Code

Name:

Flexible Fuel Percentage

Description:

Measured signal that indicates the percentage of alcohol in the fuel currently being used. 0% means no alcohol in fuel, 100% means alcohol as fuel and nothing else.EXAMPLE: If a Bi-fuel vehicle has less than 10% ethanol in the gasoline/petrol, then the external test equipment shall display state 09h (See SPN 5837). In such a case, the system would be using gasoline/petrol (fuel) tables and OBD thresholds. SPN 5458 should either artificially display 0% or some number 10% or less if the system has such resolution. If the ethanol in the gasoline/petrol is above 10%, then the external test equipment shall display state 0Bh. SPN 5458 shall report the calculated ethanol/alcohol percentage.

5458 spn fault code name is Flexible Fuel Percentage. If you don't take the time to look into 5458 spn fault when it arises, it can add up quickly. One small issue like 5458 can cause a larger component to become damaged without taking the time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road.

Note: The name and description of 5458 code represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual. See also other spn codes.

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SPNFMI Faults and Engine error code check tool. SPN code listing with names and descriptions.

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