7391 SPN Fault Code

Name:

Engine Cold Start Cylinder 8 Fuel Injection Timing

Description:

Fuel injection timing cylinder 8 during cold start. Advanced timing should use FMIs assocated with data above range (e.g. FMIs 0, 15, 16) Retarded timing should use FMIs assocated with data below range (e.g. FMIs 1, 17,18)

7391 spn fault code name is Engine Cold Start Cylinder 8 Fuel Injection Timing. If you don't take the time to look into 7391 spn fault when it arises, it can add up quickly. One small issue like 7391 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 7391 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.

7391 SPN Fault Code

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