81 SPN Fault Code

Name:

Aftertreatment 1 Diesel Particulate Filter Intake Pressure (use SPN 3609)

Description:

Exhaust pressure as a result of particle accumulation on filter media placed in the exhaust stream. It is recommended that SPN 3609 be used as it has better resolution.

81 spn fault code name is Aftertreatment 1 Diesel Particulate Filter Intake Pressure (use SPN 3609). If you don't take the time to look into 81 spn fault when it arises, it can add up quickly. One small issue like 81 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 81 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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