649 SPN Fault Code

Name:

Engine Exhaust Bank 1 Pressure Regulator Control Command

Description:

The control command to the Engine Exhaust Pressure Regulator in bank 1, normalized to percent. 100 percent means the regulator is fully closed, providing the maximum restriction to exhaust gas flow from the engine. Zero percent means the regulator is fully open, providing the minimum available restriction.

649 spn fault code name is Engine Exhaust Bank 1 Pressure Regulator Control Command. If you don't take the time to look into 649 spn fault when it arises, it can add up quickly. One small issue like 649 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 649 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.

649 SPN Fault Code

Name:

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