48.1 DESCRIPTION OF FLASH CODE 48
Flash Code 48 indicates that the ECM has detected that the Fuel Pressure has dropped below a
programmed limit. This condition is normally associated with a restriction in the fuel supply
Plugged fuel filter
Low fuel supply
Not all engines use a fuel pressure sensor, see Figure 48-1.
For gas engines, code 48 indicates that the air inlet pressure has dropped below a calibration limit.
All information subject to change without notice.
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