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Fuel Rail Pressure Positive Deviation Error
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 2215 PID: P094 SPN: 94 FMI: 1/18 LAMP: Yellow SRT: |
Fuel Rail Pressure Positive Deviation Error. Fuel rail pressure signal indicates that fuel pressure is consistently lower than the commanded fuel pressure. |
Possible stumble, low power, or engine may stall. No effect also possible. |
 Fuel Rail Pressure Circuit
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Circuit Description
This fault indicates the fuel pressure in the fuel rail pressure is consistently lower than the electronic control module (ECM) is commanding. The electronic fuel control actuator controls how much fuel is delivered to the high-pressure pump. The ECM supplies an electronic current to the fuel control actuator. The electronic fuel control actuator is normally open and is only closed when maximum current is supplied. The high-pressure fuel is accumulated in the fuel rail. The fuel rail pressure sensor measures the fuel pressure and sends a signal to the ECM.
Component Location
The fuel system is located on the air intake side of the engine.
Shop Talk
Inspect the fuel system for external leaks. Check the low pressure fuel system for restriction and air. Check the rail pressure sensor. Check the engine harness. Check the rail pressure sensor supply voltage. Check the electronic fuel control actuator. Check for internal fuel leaks.
Refer to Troubleshooting Fault Code t05-2215
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