6438 SPN Fault Code

Name:

Engine Cylinder 11 Synchronous Knock Level

Description:

Used to indicate the level of knock for engine cylinder 11. The level of knock is reported using a relative scale where 0% is least level of knock, and increasing levels indicate more knock until 100% indicates the most severe level of knock allowed or measurable for the engine.Similar to SPN 1362. SPN 6438 is combined with other combustion information in PGN 61508, so that the message is combustion synchronous.

6438 spn fault code name is Engine Cylinder 11 Synchronous Knock Level. If you don't take the time to look into 6438 spn fault when it arises, it can add up quickly. One small issue like 6438 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 6438 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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