9950 SPN Fault Code

Name:

Engine Cylinder 4 Instantaneous Center of Combustion Timing

Description:

Instantaneous Center of Combustion timing is defined as the crank angle for which 50% of the fuel mass has been burned in the present engine cycle. The data will report FB00h (64256) when the engine is not running. Center of Combustion is used to indicate the combustion efficiency. When the combustion happens after the TDC (Top Dead Center) of this cylinder, the timing is referred in terms of positive angle and if combustion happens before TDC, the timing is referred in terms of negative angle.

9950 spn fault code name is Engine Cylinder 4 Instantaneous Center of Combustion Timing. If you don't take the time to look into 9950 spn fault when it arises, it can add up quickly. One small issue like 9950 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 9950 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.

9950 SPN Fault Code

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