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Injector Metering Rail 1 Pressure – Data Valid but Below Normal Operational Range – Most Severe Level
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 2249 PID: P157 SPN: 157 FMI: 1 LAMP: Amber SRT: |
Injector Metering Rail 1 Pressure – Data Valid but Below Normal Operational Range – Most Severe Level. The ECM has detected that fuel pressure is lower than commanded pressure. |
Possibly hard to start, low power, or engine smoke. |
 Rail Fuel Pressure
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Circuit Description
The ECM monitors rail fuel pressure and engine operating conditions and changes the flow command to maintain the proper rail fuel pressure. Changes to the flow command result in opening (or closing) or the fuel pump actuator is supply more (or less) fuel to the high pressure pump.
Component Location
Refer to Procedure 100-002 for a detailed component location view.
Shop Talk
Fault Code 2249 is very similar to Fault Code 559 except that the fault triggers at a different fuel pressure threshold limit. If Fault Code 2249 is active, the troubleshooting procedures for Fault Code 559 must
be followed.
Refer to Troubleshooting Fault Code t05-2249
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