731 SPN Fault Code


Engine Knock 1


Value of 1st sensor used to detect engine knock.

731 spn fault code name is Engine Knock 1. If you don't take the time to look into 731 spn fault when it arises, it can add up quickly. One small issue like 731 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 731 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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