7649 SPN Fault Code

Name:

Engine Exhaust 1 NOx 2

Description:

The second measurement of the amount of combined NO and NO2 in the exhaust, represented in NOx molecule parts per million non-NOx molecules in exhaust bank 1. This sensor is located at the intake of the SCR system if an SCR system exists.

7649 spn fault code name is Engine Exhaust 1 NOx 2. If you don't take the time to look into 7649 spn fault when it arises, it can add up quickly. One small issue like 7649 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 7649 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.

7649 SPN Fault Code

Name:

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