Peterbilt 387 9178 SPN Fault Code

Name:

Aftertreatment 1 Outlet Oxygen Pumping Current

Description:

Electrical pumping current directly measured from a Lambda sensor for the purpose of calculating an air/fuel ratio. This sensor is located closest to the outlet of aftertreatment 1 system.Negative electrical current values are possible with richer air/fuel ratios.

Peterbilt 387 9178 spn fault code name is Aftertreatment 1 Outlet Oxygen Pumping Current. If you don't take the time to look into Peterbilt 387 9178 spn fault when it arises, it can add up quickly. One small issue like Peterbilt 387 9178 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 Peterbilt 387 9178 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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